Depth	Date (A.D.)
1.05	1973
1.8	1972
2.49	1971
3.42	1970
4.03	1969
4.47	1968
5.01	1967
5.4	1966
6.16	1965
6.67	1964
7.36	1963
7.81	1962
8.3	1961
8.65	1960
9.3	1959
9.82	1958
10.36	1957
11.06	1956
11.59	1955
12.07	1954
12.58	1953
13.1	1952
13.53	1951
13.88	1950
14.31	1949
14.82	1948
15.28	1947
15.82	1946
16.44	1945
17.01	1944
17.35	1943
17.88	1942
18.45	1941
18.86	1940
19.53	1939
20.13	1938
20.5	1937
20.9	1936
21.27	1935
21.71	1934
22.33	1933
22.84	1932
23.27	1931
23.6	1930
24.13	1929
24.38	1928
24.88	1927
25.28	1926
25.67	1925
25.91	1924
26.44	1923
26.83	1922
27.11	1921
27.56	1920
27.91	1919
28.29	1918
28.67	1917
29.15	1916
29.5	1915
29.91	1914
30.32	1913
30.69	1912
31.2	1911
31.61	1910
31.98	1909
32.51	1908
32.78	1907
33.12	1906
33.52	1905
33.85	1904
34.08	1903
34.54	1902
35.04	1901
35.36	1900
35.72	1899
36.18	1898
36.57	1897
37.06	1896
37.48	1895
37.87	1894
38.22	1893
38.51	1892
38.96	1891
39.31	1890
39.75	1889
40.26	1888
40.64	1887
40.92	1886
41.3	1885
41.77	1884
42.11	1883
42.46	1882
42.74	1881
43.2	1880
43.51	1879
43.88	1878
44.16	1877
44.59	1876
44.99	1875
45.26	1874
45.6	1873
46.03	1872
46.36	1871
46.82	1870
47.06	1869
47.48	1868
47.9	1867
48.2	1866
48.5	1865
48.89	1864
49.16	1863
49.52	1862
49.93	1861
50.23	1860
50.52	1859
50.88	1858
51.2	1857
51.61	1856
52.05	1855
52.38	1854
52.78	1853
53.13	1852
53.48	1851
53.83	1850
54.12	1849
54.38	1848
54.81	1847
55.07	1846
55.45	1845
55.76	1844
56.05	1843
56.36	1842
56.68	1841
57.05	1840
57.33	1839
57.67	1838
58.01	1837
58.18	1836
58.55	1835
58.95	1834
59.23	1833
59.65	1832
60.07	1831
60.35	1830
60.6	1829
60.99	1828
61.35	1827
61.69	1826
62.1	1825
62.38	1824
62.6	1823
62.96	1822
63.15	1821
63.59	1820
63.92	1819
64.2	1818
64.53	1817
64.83	1816
65.1	1815
65.49	1814
65.68	1813
66.06	1812
66.36	1811
66.63	1810
67.12	1809
67.47	1808
67.71	1807
68.01	1806
68.38	1805
68.71	1804
69.03	1803
69.3	1802
69.59	1801
69.91	1800
70.29	1799
70.56	1798
70.8	1797
71.22	1796
71.46	1795
71.83	1794
72.07	1793
72.34	1792
72.65	1791
72.92	1790
73.1	1789
73.37	1788
73.66	1787
74.05	1786
74.47	1785
74.66	1784
75.02	1783
75.31	1782
75.63	1781
75.94	1780
76.28	1779
76.43	1778
76.75	1777
77.11	1776
77.4	1775
77.81	1774
77.97	1773
78.31	1772
78.69	1771
78.98	1770
79.29	1769
79.62	1768
79.91	1767
80.22	1766
80.47	1765
80.83	1764
81.11	1763
81.42	1762
81.68	1761
82.04	1760
82.34	1759
82.62	1758
82.91	1757
83.19	1756
83.47	1755
83.72	1754
84.03	1753
84.25	1752
84.58	1751
84.86	1750
85.24	1749
85.65	1748
85.85	1747
86.2	1746
86.43	1745
86.73	1744
87.09	1743
87.44	1742
87.77	1741
88.14	1740
88.5	1739
88.75	1738
88.97	1737
89.37	1736
89.62	1735
89.9	1734
90.25	1733
90.52	1732
90.82	1731
91.15	1730
91.52	1729
91.79	1728
92.12	1727
92.37	1726
92.71	1725
92.96	1724
93.28	1723
93.56	1722
93.88	1721
94.15	1720
94.47	1719
94.82	1718
95.14	1717
95.34	1716
95.56	1715
95.81	1714
96.17	1713
96.52	1712
96.81	1711
97.04	1710
97.36	1709
97.63	1708
97.9	1707
98.09	1706
98.36	1705
98.63	1704
98.88	1703
99.17	1702
99.41	1701
99.68	1700
99.95	1699
100.24	1698
100.51	1697
100.66	1696
100.95	1695
101.24	1694
101.54	1693
101.95	1692
102.24	1691
102.56	1690
102.75	1689
103.02	1688
103.36	1687
103.6	1686
103.92	1685
104.23	1684
104.62	1683
104.91	1682
105.2	1681
105.39	1680
105.83	1679
106.14	1678
106.41	1677
106.63	1676
107.01	1675
107.28	1674
107.54	1673
107.78	1672
108.1	1671
108.41	1670
108.67	1669
108.89	1668
109.2	1667
109.54	1666
109.8	1665
110.07	1664
110.35	1663
110.59	1662
110.93	1661
111.24	1660
111.53	1659
111.84	1658
112.15	1657
112.46	1656
112.72	1655
112.96	1654
113.3	1653
113.61	1652
113.92	1651
114.13	1650
114.51	1649
114.82	1648
115.01	1647
115.32	1646
115.63	1645
115.92	1644
116.2	1643
116.42	1642
116.68	1641
117.04	1640
117.27	1639
117.56	1638
117.77	1637
118.01	1636
118.37	1635
118.67	1634
118.89	1633
119.12	1632
119.38	1631
119.6	1630
119.81	1629
120.14	1628
120.38	1627
120.64	1626
120.87	1625
121.06	1624
121.37	1623
121.58	1622
121.89	1621
122.2	1620
122.46	1619
122.76	1618
123.02	1617
123.26	1616
123.49	1615
123.8	1614
124.13	1613
124.37	1612
124.58	1611
124.86	1610
125.19	1609
125.5	1608
125.75	1607
125.99	1606
126.22	1605
126.41	1604
126.72	1603
126.98	1602
127.19	1601
127.52	1600
127.7	1599
128.03	1598
128.36	1597
128.57	1596
128.85	1595
129.16	1594
129.44	1593
129.65	1592
129.98	1591
130.26	1590
130.61	1589
130.91	1588
131.15	1587
131.43	1586
131.78	1585
131.99	1584
132.27	1583
132.45	1582
132.78	1581
133.08	1580
133.32	1579
133.57	1578
133.92	1577
134.18	1576
134.48	1575
134.79	1574
135	1573
135.35	1572
135.6	1571
135.86	1570
136.16	1569
136.42	1568
136.65	1567
136.91	1566
137.14	1565
137.37	1564
137.7	1563
137.93	1562
138.14	1561
138.39	1560
138.63	1559
138.95	1558
139.35	1557
139.62	1556
139.81	1555
140.16	1554
140.44	1553
140.65	1552
140.95	1551
141.2	1550
141.53	1549
141.85	1548
142.15	1547
142.43	1546
142.66	1545
142.96	1544
143.24	1543
143.52	1542
143.84	1541
144.14	1540
144.37	1539
144.65	1538
144.97	1537
145.18	1536
145.39	1535
145.76	1534
145.97	1533
146.27	1532
146.52	1531
146.8	1530
147.08	1529
147.28	1528
147.65	1527
147.88	1526
148.14	1525
148.48	1524
148.83	1523
149.06	1522
149.29	1521
149.61	1520
149.87	1519
150.12	1518
150.46	1517
150.67	1516
150.93	1515
151.29	1514
151.45	1513
151.75	1512
152.08	1511
152.31	1510
152.63	1509
152.93	1508
153.23	1507
153.48	1506
153.78	1505
154.12	1504
154.42	1503
154.6	1502
154.9	1501
155.22	1500
155.55	1499
155.89	1498
156.05	1497
156.3	1496
156.6	1495
156.83	1494
157.11	1493
157.4	1492
157.72	1491
158.02	1490
158.34	1489
158.64	1488
158.98	1487
159.21	1486
159.51	1485
159.83	1484
160.04	1483
160.29	1482
160.5	1481
160.77	1480
161.02	1479
161.3	1478
161.62	1477
161.8	1476
161.96	1475
162.37	1474
162.58	1473
162.78	1472
162.99	1471
163.24	1470
163.58	1469
163.81	1468
163.99	1467
164.31	1466
164.56	1465
164.86	1464
165.11	1463
165.36	1462
165.71	1461
165.98	1460
166.19	1459
166.5	1458
166.82	1457
167.1	1456
167.35	1455
167.62	1454
167.87	1453
168.17	1452
168.35	1451
168.72	1450
168.97	1449
169.24	1448
169.47	1447
169.79	1446
169.95	1445
170.31	1444
170.61	1443
170.81	1442
171.08	1441
171.31	1440
171.58	1439
171.93	1438
172.18	1437
172.45	1436
172.74	1435
173.02	1434
173.33	1433
173.56	1432
173.83	1431
174.11	1430
174.4	1429
174.65	1428
174.81	1427
175.15	1426
175.4	1425
175.7	1424
176.04	1423
176.26	1422
176.54	1421
176.79	1420
177.08	1419
177.51	1418
177.74	1417
178.03	1416
178.33	1415
178.58	1414
178.85	1413
179.15	1412
179.42	1411
179.64	1410
180.01	1409
180.26	1408
180.57	1407
180.91	1406
181.12	1405
181.55	1404
181.93	1403
182.18	1402
182.47	1401
182.75	1400
182.95	1399
183.24	1398
183.52	1397
183.88	1396
184.24	1395
184.51	1394
184.78	1393
185.08	1392
185.39	1391
185.59	1390
185.87	1389
186.25	1388
186.43	1387
186.72	1386
187.02	1385
187.27	1384
187.56	1383
187.83	1382
188.08	1381
188.24	1380
188.53	1379
188.76	1378
189.03	1377
189.16	1376
189.48	1375
189.7	1374
189.95	1373
190.27	1372
190.52	1371
190.79	1370
191.06	1369
191.3	1368
191.58	1367
191.85	1366
192.16	1365
192.32	1364
192.63	1363
192.81	1362
193.15	1361
193.33	1360
193.65	1359
193.94	1358
194.19	1357
194.53	1356
194.8	1355
195.07	1354
195.4	1353
195.65	1352
195.88	1351
196.19	1350
196.44	1349
196.69	1348
197.04	1347
197.43	1346
197.63	1345
197.97	1344
198.21	1343
198.46	1342
198.71	1341
199.02	1340
199.34	1339
199.56	1338
199.97	1337
200.21	1336
200.5	1335
200.71	1334
201	1333
201.25	1332
201.49	1331
201.74	1330
202.01	1329
202.28	1328
202.59	1327
202.88	1326
203.17	1325
203.47	1324
203.74	1323
204.09	1322
204.3	1321
204.48	1320
204.74	1319
205.12	1318
205.39	1317
205.66	1316
205.89	1315
206.16	1314
206.42	1313
206.76	1312
207.01	1311
207.23	1310
207.5	1309
207.7	1308
208.04	1307
208.37	1306
208.66	1305
208.91	1304
209.09	1303
209.42	1302
209.67	1301
210	1300
210.32	1299
210.65	1298
210.9	1297
211.14	1296
211.39	1295
211.64	1294
211.86	1293
212.08	1292
212.24	1291
212.46	1290
212.66	1289
212.98	1288
213.2	1287
213.42	1286
213.71	1285
213.89	1284
214.14	1283
214.41	1282
214.7	1281
214.96	1280
215.28	1279
215.5	1278
215.81	1277
216.08	1276
216.3	1275
216.61	1274
216.88	1273
217.11	1272
217.4	1271
217.57	1270
217.82	1269
218.06	1268
218.38	1267
218.64	1266
218.87	1265
219.07	1264
219.38	1263
219.67	1262
219.98	1261
220.25	1260
220.43	1259
220.74	1258
221.05	1257
221.23	1256
221.52	1255
221.72	1254
221.89	1253
222.09	1252
222.41	1251
222.61	1250
222.83	1249
223.03	1248
223.23	1247
223.5	1246
223.7	1245
223.94	1244
224.25	1243
224.52	1242
224.76	1241
225.07	1240
225.3	1239
225.63	1238
225.9	1237
226.19	1236
226.47	1235
226.76	1234
227.07	1233
227.3	1232
227.52	1231
227.83	1230
228.05	1229
228.3	1228
228.56	1227
228.81	1226
229.03	1225
229.36	1224
229.63	1223
229.87	1222
230.11	1221
230.45	1220
230.67	1219
230.96	1218
231.2	1217
231.49	1216
231.78	1215
232.07	1214
232.4	1213
232.75	1212
233	1211
233.28	1210
233.57	1209
233.82	1208
234.06	1207
234.37	1206
234.61	1205
234.9	1204
235.12	1203
235.21	1202
235.43	1201
235.59	1200
235.83	1199
236.14	1198
236.36	1197
236.58	1196
236.76	1195
237.07	1194
237.38	1193
237.67	1192
237.87	1191
238.09	1190
238.37	1189
238.64	1188
238.91	1187
239.19	1186
239.48	1185
239.75	1184
240.01	1183
240.28	1182
240.52	1181
240.74	1180
240.98	1179
241.25	1178
241.47	1177
241.76	1176
241.98	1175
242.31	1174
242.68	1173
242.9	1172
243.15	1171
243.39	1170
243.72	1169
243.98	1168
244.27	1167
244.51	1166
244.8	1165
245.11	1164
245.44	1163
245.66	1162
245.97	1161
246.3	1160
246.56	1159
246.81	1158
247.09	1157
247.36	1156
247.6	1155
247.86	1154
248.13	1153
248.35	1152
248.61	1151
248.92	1150
249.21	1149
249.43	1148
249.65	1147
250	1146
250.33	1145
250.57	1144
250.86	1143
251.06	1142
251.32	1141
251.65	1140
251.85	1139
252.07	1138
252.31	1137
252.64	1136
252.93	1135
253.21	1134
253.45	1133
253.76	1132
254.02	1131
254.31	1130
254.49	1129
254.75	1128
255.06	1127
255.28	1126
255.41	1125
255.56	1124
255.89	1123
256.15	1122
256.42	1121
256.64	1120
256.9	1119
257.21	1118
257.45	1117
257.78	1116
258.06	1115
258.31	1114
258.5	1113
258.81	1112
259.05	1111
259.34	1110
259.58	1109
259.8	1108
260.1	1107
260.37	1106
260.63	1105
260.94	1104
261.22	1103
261.53	1102
261.75	1101
262.1	1100
262.34	1099
262.58	1098
262.89	1097
263.11	1096
263.39	1095
263.63	1094
263.85	1093
264.11	1092
264.42	1091
264.66	1090
264.88	1089
265.14	1088
265.47	1087
265.8	1086
266.12	1085
266.37	1084
266.63	1083
266.85	1082
267.07	1081
267.41	1080
267.61	1079
267.92	1078
268.09	1077
268.31	1076
268.53	1075
268.75	1074
268.94	1073
269.23	1072
269.38	1071
269.64	1070
269.97	1069
270.26	1068
270.52	1067
270.74	1066
270.93	1065
271.17	1064
271.41	1063
271.74	1062
271.98	1061
272.2	1060
272.46	1059
272.76	1058
273.03	1057
273.29	1056
273.59	1055
273.9	1054
274.18	1053
274.38	1052
274.68	1051
274.97	1050
275.18	1049
275.42	1048
275.8	1047
276.06	1046
276.27	1045
276.58	1044
276.95	1043
277.21	1042
277.49	1041
277.84	1040
278.17	1039
278.36	1038
278.65	1037
279	1036
279.21	1035
279.5	1034
279.71	1033
279.95	1032
280.15	1031
280.41	1030
280.63	1029
280.95	1028
281.21	1027
281.43	1026
281.67	1025
281.91	1024
282.26	1023
282.48	1022
282.8	1021
283.04	1020
283.34	1019
283.6	1018
283.87	1017
284.1	1016
284.47	1015
284.73	1014
284.99	1013
285.3	1012
285.58	1011
285.8	1010
286.04	1009
286.3	1008
286.6	1007
286.9	1006
287.27	1005
287.49	1004
287.73	1003
288.03	1002
288.29	1001
288.55	1000
288.79	999
289.07	998
289.31	997
289.55	996
289.72	995
290	994
290.29	993
290.5	992
290.7	991
290.89	990
291.2	989
291.5	988
291.76	987
292.06	986
292.37	985
292.62	984
292.86	983
293.19	982
293.43	981
293.69	980
294.01	979
294.33	978
294.64	977
294.92	976
295.11	975
295.44	974
295.67	973
296.06	972
296.26	971
296.43	970
296.67	969
296.89	968
297.12	967
297.43	966
297.71	965
297.97	964
298.29	963
298.51	962
298.85	961
299	960
299.33	959
299.61	958
299.78	957
300.12	956
300.4	955
300.62	954
300.94	953
301.29	952
301.57	951
301.83	950
302.13	949
302.48	948
302.73	947
302.95	946
303.29	945
303.57	944
303.81	943
304.03	942
304.29	941
304.54	940
304.87	939
305.15	938
305.38	937
305.64	936
305.88	935
306.18	934
306.42	933
306.65	932
306.87	931
307.15	930
307.45	929
307.6	928
307.88	927
308.18	926
308.46	925
308.68	924
308.96	923
309.24	922
309.47	921
309.86	920
310.18	919
310.4	918
310.59	917
310.85	916
311.15	915
311.45	914
311.75	913
311.94	912
312.29	911
312.48	910
312.72	909
312.95	908
313.21	907
313.38	906
313.64	905
313.9	904
314.13	903
314.39	902
314.61	901
314.91	900
315.21	899
315.44	898
315.64	897
315.81	896
315.98	895
316.19	894
316.52	893
316.77	892
316.97	891
317.22	890
317.5	889
317.74	888
317.95	887
318.27	886
318.53	885
318.87	884
319.04	883
319.3	882
319.56	881
319.77	880
320.05	879
320.37	878
320.69	877
320.95	876
321.23	875
321.4	874
321.59	873
321.93	872
322.13	871
322.36	870
322.62	869
322.83	868
323.07	867
323.33	866
323.6	865
323.84	864
324.05	863
324.27	862
324.48	861
324.82	860
325.01	859
325.29	858
325.55	857
325.83	856
326.15	855
326.4	854
326.62	853
326.92	852
327.19	851
327.43	850
327.71	849
327.88	848
328.11	847
328.43	846
328.67	845
329.01	844
329.24	843
329.5	842
329.77	841
330.05	840
330.35	839
330.65	838
330.99	837
331.22	836
331.52	835
331.69	834
331.97	833
332.23	832
332.46	831
332.76	830
333.1	829
333.36	828
333.59	827
333.93	826
334.19	825
334.36	824
334.65	823
335.02	822
335.25	821
335.48	820
335.76	819
335.97	818
336.31	817
336.55	816
336.8	815
337.08	814
337.31	813
337.51	812
337.74	811
338.02	810
338.31	809
338.55	808
338.82	807
339.08	806
339.31	805
339.59	804
339.84	803
340.06	802
340.25	801
340.44	800
340.67	799
340.86	798
341.18	797
341.37	796
341.65	795
341.86	794
342.12	793
342.35	792
342.58	791
342.82	790
343.09	789
343.33	788
343.58	787
343.81	786
344.13	785
344.41	784
344.68	783
344.94	782
345.21	781
345.4	780
345.66	779
345.85	778
346.19	777
346.4	776
346.67	775
346.93	774
347.29	773
347.5	772
347.78	771
348.03	770
348.33	769
348.67	768
348.92	767
349.19	766
349.39	765
349.68	764
349.89	763
350.13	762
350.4	761
350.7	760
351.06	759
351.35	758
351.59	757
351.88	756
352.18	755
352.56	754
352.77	753
353.04	752
353.3	751
353.51	750
353.76	749
354.06	748
354.33	747
354.61	746
354.88	745
355.09	744
355.47	743
355.68	742
356.02	741
356.21	740
356.49	739
356.76	738
357.06	737
357.33	736
357.6	735
357.84	734
358.11	733
358.38	732
358.72	731
359	730
359.29	729
359.5	728
359.78	727
360.03	726
360.28	725
360.51	724
360.81	723
361.04	722
361.29	721
361.63	720
361.99	719
362.18	718
362.37	717
362.62	716
362.98	715
363.21	714
363.46	713
363.76	712
363.97	711
364.26	710
364.49	709
364.77	708
364.93	707
365.25	706
365.59	705
365.78	704
366.05	703
366.2	702
366.47	701
366.72	700
367.02	699
367.25	698
367.41	697
367.73	696
368	695
368.17	694
368.42	693
368.67	692
368.93	691
369.16	690
369.43	689
369.72	688
370.08	687
370.21	686
370.44	685
370.69	684
370.88	683
371.15	682
371.4	681
371.7	680
371.86	679
372.2	678
372.45	677
372.77	676
373.04	675
373.25	674
373.48	673
373.75	672
373.98	671
374.25	670
374.42	669
374.72	668
374.97	667
375.16	666
375.41	665
375.68	664
375.89	663
376.12	662
376.37	661
376.66	660
376.89	659
377.1	658
377.33	657
377.63	656
377.9	655
378.15	654
378.44	653
378.61	652
378.78	651
379.03	650
379.32	649
379.59	648
379.8	647
380.07	646
380.34	645
380.53	644
380.8	643
381.12	642
381.45	641
381.58	640
381.91	639
382.25	638
382.54	637
382.75	636
383.06	635
383.29	634
383.54	633
383.83	632
384.1	631
384.31	630
384.65	629
384.85	628
385.11	627
385.38	626
385.61	625
385.92	624
386.09	623
386.34	622
386.59	621
386.84	620
387.07	619
387.4	618
387.67	617
388	616
388.27	615
388.52	614
388.73	613
389.09	612
389.34	611
389.54	610
389.9	609
390.09	608
390.38	607
390.67	606
390.86	605
391.15	604
391.36	603
391.69	602
391.92	601
392.13	600
392.42	599
392.73	598
393	597
393.27	596
393.54	595
393.79	594
394	593
394.27	592
394.47	591
394.72	590
394.99	589
395.2	588
395.47	587
395.66	586
395.97	585
396.2	584
396.47	583
396.68	582
396.93	581
397.2	580
397.36	579
397.59	578
397.86	577
398.11	576
398.36	575
398.57	574
398.75	573
399.06	572
399.33	571
399.6	570
399.79	569
399.91	568
400.12	567
400.41	566
400.64	565
400.91	564
401.22	563
401.39	562
401.65	561
401.97	560
402.19	559
402.42	558
402.71	557
402.96	556
403.23	555