GRL Age	GRL Qtrly 13C	GRL Qtrly 18O
1979.5	-0.07	-4.72
1979.25	-9999.99	-9999.99
1979	-9999.99	-9999.99
1978.75	-0.37	-4.69
1978.5	-1.05	-4.87
1978.25	-9999.99	-9999.99
1978	-9999.99	-9999.99
1977.75	-0.57	-5.14
1977.5	-0.21	-4.79
1977.25	-9999.99	-9999.99
1977	-0.78	-5.17
1976.75	-0.41	-5.19
1976.5	-0.05	-4.91
1976.25	-0.85	-5.47
1976	-0.3	-4.94
1975.75	-0.64	-5.4
1975.5	-0.33	-5
1975.25	-0.73	-5.16
1975	0.02	-5.09
1974.75	-1.51	-5.34
1974.5	0.56	-4.79
1974.25	-1.08	-5.51
1974	-0.43	-5.3
1973.75	-0.06	-5.1
1973.5	0.28	-4.83
1973.25	-1.11	-5.48
1973	-0.33	-5.1
1972.75	-0.15	-4.96
1972.5	1.26	-4.61
1972.25	0.03	-5.14
1972	0.56	-4.78
1971.75	-0.15	-4.9
1971.5	0.36	-4.9
1971.25	0.1	-5
1971	2.26	-4.37
1970.75	-0.36	-5.11
1970.5	0.4	-4.97
1970.25	0.82	-4.67
1970	0.67	-4.95
1969.75	-0.47	-5.1
1969.5	0.19	-4.72
1969.25	0.89	-4.79
1969	0.05	-5.08
1968.75	-0.42	-5.2
1968.5	0.55	-4.78
1968.25	0.33	-4.99
1968	0.59	-4.75
1967.75	-0.62	-5.19
1967.5	0.18	-4.91
1967.25	-0.93	-5.23
1967	0.18	-5.07
1966.75	-0.05	-5.19
1966.5	0.64	-4.56
1966.25	-0.18	-5.14
1966	-0.09	-4.99
1965.75	-0.41	-4.99
1965.5	1.55	-4.65
1965.25	-0.11	-5.14
1965	0.28	-4.74
1964.75	-0.42	-5.14
1964.5	0.1	-4.88
1964.25	1.23	-4.43
1964	-9999.99	-9999.99
1963.75	-0.41	-5
1963.5	0.28	-4.78
1963.25	0.28	-4.81
1963	1.15	-4.78
1962.75	-0.74	-5.35
1962.5	-0.46	-5.1
1962.25	0.26	-4.96
1962	-0.05	-5.17
1961.75	-0.71	-5.36
1961.5	0.5	-5.1
1961.25	-9999.99	-9999.99
1961	-0.15	-5.26
1960.75	-1.14	-5.42
1960.5	0.38	-4.84
1960.25	-0.9	-5.39
1960	-1.06	-5.43
1959.75	0.14	-5.06
1959.5	1.02	-4.35
1959.25	-0.97	-5.38
1959	-0.85	-5.61
1958.75	0.32	-5.01
1958.5	-0.3	-4.98
1958.25	-9999.99	-9999.99
1958	-0.81	-5.39
1957.75	-0.71	-4.83
1957.5	0.05	-4.74
1957.25	-1.19	-5.29
1957	-0.88	-5.34
1956.75	-1.16	-4.77
1956.5	0.13	-4.84
1956.25	-0.64	-5.11
1956	-9999.99	-9999.99
1955.75	1.16	-4.44
1955.5	1	-4.58
1955.25	-0.3	-5.04
1955	-0.05	-4.86
1954.75	-1.39	-5.3
1954.5	-0.6	-5.06
1954.25	-0.91	-5.33
1954	0.9	-5.23
1953.75	-0.42	-5
1953.5	-0.54	-4.82
1953.25	-0.68	-5.36
1953	-1.14	-5.36
1952.75	-0.66	-5.03
1952.5	-0.48	-5.13
1952.25	-0.93	-5.13
1952	-0.84	-5.11
1951.75	-1.29	-5.05
1951.5	-0.67	-5.16
1951.25	-0.92	-4.93
1951	-0.95	-5
1950.75	-1.55	-5.39
1950.5	-0.42	-5.14
1950.25	0.61	-4.85
1950	-0.99	-5.02
1949.75	-0.86	-5.2
1949.5	-0.93	-5.43
1949.25	-0.84	-4.98
1949	-0.5	-5.23
1948.75	-0.73	-5.06
1948.5	-0.82	-5.41
1948.25	-0.09	-5.06
1948	-0.93	-5.3
1947.75	-0.73	-5.47
1947.5	0.05	-4.8
1947.25	-0.68	-5.25
1947	1.72	-4.73
1946.75	-0.49	-5.18
1946.5	-0.49	-5.19
1946.25	1.84	-4.76
1946	-0.77	-5.18
1945.75	-1.05	-5.18
1945.5	1.24	-4.86
1945.25	0.67	-4.91
1945	1.42	-4.72
1944.75	0.82	-5.03
1944.5	1.58	-5.04
1944.25	0.55	-5.32
1944	0.38	-4.83
1943.75	-0.33	-5.24
1943.5	1.22	-4.96
1943.25	-0.4	-5.12
1943	-0.24	-5.09
1942.75	-0.38	-5.32
1942.5	1.08	-4.66
1942.25	-0.12	-5.11
1942	-0.37	-5.07
1941.75	0.77	-4.99
1941.5	0.39	-4.64
1941.25	0.67	-4.69
1941	-0.53	-5.42
1940.75	-0.76	-5.15
1940.5	0.12	-4.85
1940.25	-0.69	-5.18
1940	-0.97	-5.17
1939.75	-1.09	-4.75
1939.5	-0.26	-5
1939.25	-0.49	-4.91
1939	-0.41	-5.08
1938.75	-0.77	-5.31
1938.5	-0.47	-5.11
1938.25	-0.14	-5.07
1938	0.13	-4.91
1937.75	-0.82	-5.36
1937.5	-0.94	-5.02
1937.25	1.06	-4.7
1937	-0.17	-4.98
1936.75	-1.19	-5.28
1936.5	0.83	-4.74
1936.25	-0.15	-5.06
1936	-1.04	-5.24
1935.75	-0.44	-5.21
1935.5	-0.15	-4.99
1935.25	0.21	-5.07
1935	-0.2	-5.04
1934.75	-0.17	-5.06
1934.5	-0.83	-5.23
1934.25	-0.51	-5.14
1934	-1.04	-5.4
1933.75	-0.73	-4.98
1933.5	-0.76	-5.19
1933.25	-0.4	-5.43
1933	-0.62	-4.92
1932.75	-0.57	-5.32
1932.5	0.8	-5.02
1932.25	-1.05	-5.23
1932	0.16	-4.93
1931.75	-0.64	-5.22
1931.5	1.05	-5.01
1931.25	-1.07	-5.38
1931	-0.96	-5.31
1930.75	-1.15	-5.15
1930.5	-0.45	-4.8
1930.25	-0.81	-5.29
1930	-1.34	-5.37
1929.75	-0.3	-5.19
1929.5	-0.78	-5.07
1929.25	-0.56	-5.04
1929	-0.99	-5.04
1928.75	-0.12	-5.16
1928.5	0.06	-4.97
1928.25	-0.36	-4.52
1928	-0.34	-4.9
1927.75	-0.39	-5.15
1927.5	0.43	-5.15
1927.25	0.6	-4.8
1927	-0.05	-5.23
1926.75	-0.62	-5.15
1926.5	-0.47	-5.28
1926.25	0.14	-5.17
1926	-0.07	-5.07
1925.75	-0.06	-4.9
1925.5	-0.37	-5.3
1925.25	1.06	-4.97
1925	-0.47	-5.13
1924.75	-0.11	-5.36
1924.5	0.75	-4.84
1924.25	0.58	-4.93
1924	-0.8	-5.33
1923.75	-0.75	-5.33
1923.5	0.2	-5.09
1923.25	0.12	-5.19
1923	-0.86	-5.13
1922.75	-0.07	-5.01
1922.5	-0.06	-5.11
1922.25	-0.58	-5.22
1922	-0.9	-5.18
1921.75	-0.32	-5.14
1921.5	0.38	-4.94
1921.25	0.23	-4.9
1921	0.04	-5.13
1920.75	-1.05	-5.35
1920.5	-0.51	-5.09
1920.25	-0.17	-5.22
1920	0.59	-5.02
1919.75	-0.81	-5.48
1919.5	-0.01	-5.17
1919.25	-1.01	-5.42
1919	-0.83	-5.25
1918.75	-0.92	-5.09
1918.5	0.03	-4.75
1918.25	-0.43	-5.19
1918	-0.53	-5.26
1917.75	-0.54	-5.08
1917.5	-0.82	-5.08
1917.25	0.18	-4.86
1917	-1.04	-5.34
1916.75	0.89	-5.11
1916.5	-0.88	-4.18
1916.25	-1.16	-5.09
1916	-0.38	-5.46
1915.75	0.44	-4.9
1915.5	-0.48	-5.14
1915.25	-9999.99	-9999.99
1915	-0.54	-5.09
1914.75	0.6	-4.92
1914.5	-0.87	-5.4
1914.25	0.29	-5.03
1914	-0.43	-5.22
1913.75	0.2	-4.84
1913.5	-0.49	-5
1913.25	-0.17	-5
1913	-0.98	-4.91
1912.75	0.38	-4.87
1912.5	-0.97	-5.27
1912.25	-0.27	-4.76
1912	-0.44	-5.15
1911.75	-0.22	-5.04
1911.5	-0.91	-5.31
1911.25	0.01	-5.06
1911	-0.32	-5.33
1910.75	0.33	-4.98
1910.5	-0.67	-5.15
1910.25	0.39	-5.01
1910	-0.51	-5.45
1909.75	-0.49	-5.28
1909.5	-0.43	-5.19
1909.25	-0.06	-5.3
1909	-0.88	-5.47
1908.75	0.88	-5.47
1908.5	0.51	-5.06
1908.25	-0.04	-5.31
1908	-0.86	-5.52
1907.75	0.36	-5.04
1907.5	0.54	-5.06
1907.25	0.28	-5.13
1907	-0.18	-5.3
1906.75	-0.18	-5.31
1906.5	1.12	-4.82
1906.25	-0.18	-5.13
1906	0.34	-5.05
1905.75	0.35	-4.66
1905.5	-0.13	-5.01
1905.25	-0.47	-5.11
1905	-0.15	-5.21
1904.75	-0.4	-5.05
1904.5	2.08	-4.16
1904.25	-0.9	-5.32
1904	-0.1	-5.32
1903.75	-0.57	-5.12
1903.5	-0.49	-5.1
1903.25	-0.54	-5.41
1903	-0.08	-5
1902.75	0.16	-4.87
1902.5	-0.05	-4.87
1902.25	-0.04	-5.08
1902	0.07	-4.9
1901.75	0.34	-4.99
1901.5	-0.34	-4.99
1901.25	-0.46	-4.91
1901	-0.6	-5.32
1900.75	-0.43	-4.98
1900.5	-0.21	-4.95
1900.25	-0.57	-5.05
1900	-1.31	-5.05
1899.75	0.01	-4.97
1899.5	-0.71	-5.21
1899.25	-1.32	-5.12
1899	0.78	-4.99
1898.75	0.15	-5.33
1898.5	-0.06	-5.08
1898.25	-0.29	-5.16
1898	0.08	-5.15
1897.75	-0.04	-5.14
1897.5	0.32	-5.28
1897.25	-0.01	-5.19
1897	-0.53	-5.12
1896.75	0.84	-4.95
1896.5	0.49	-4.93
1896.25	0.04	-4.93
1896	-0.05	-5.07
1895.75	0.86	-4.68
1895.5	0.84	-4.76
1895.25	-0.02	-5.12
1895	-1.17	-5.75
1894.75	0.12	-4.99
1894.5	-0.18	-4.92
1894.25	0.32	-4.86
1894	-0.18	-5.4
1893.75	0	-5.05
1893.5	0.3	-5.09
1893.25	-0.48	-5.42
1893	0.07	-5.45
1892.75	-0.19	-5.12
1892.5	0.71	-5.17
1892.25	-0.35	-5.46
1892	-0.2	-5.31
1891.75	-0.1	-5.14
1891.5	-0.39	-5.19
1891.25	-0.64	-5.35
1891	-0.8	-5.46
1890.75	0.02	-5.23
1890.5	0.14	-4.88
1890.25	-0.85	-3.72
1890	-0.71	-5.48
1889.75	0.87	-5.24
1889.5	-0.4	-5.23
1889.25	-0.24	-5.13
1889	-0.69	-5.08
1888.75	-0.31	-5.22
1888.5	0.06	-5.01
1888.25	-0.79	-5
1888	-0.66	-5.58
1887.75	0.37	-4.98
1887.5	-1.22	-5.22
1887.25	-0.62	-5.2
1887	-0.13	-5.47
1886.75	0.33	-5.13
1886.5	-0.8	-5.21
1886.25	0.12	-4.84
1886	0.26	-5.22
1885.75	0.15	-5.02
1885.5	-0.3	-5.02
1885.25	0.33	-4.65
1885	-0.03	-5.1
1884.75	1.02	-4.91
1884.5	0.32	-4.71
1884.25	0.89	-4.79
1884	-0.2	-5.3
1883.75	1.64	-4.68
1883.5	0.45	-4.99
1883.25	0.13	-5.09
1883	0.18	-5.25
1882.75	0.43	-5.29
1882.5	0.54	-4.9
1882.25	-9999.99	-9999.99
1882	0.52	-5.29
1881.75	0.06	-5.08
1881.5	0.19	-5.27
1881.25	-0.81	-5.2
1881	-0.23	-5.33
1880.75	1.94	-5.08
1880.5	-0.47	-5.11
1880.25	0.33	-5.14
1880	0.22	-5.25
1879.75	-0.51	-5.28
1879.5	-9999.99	-9999.99
1879.25	0.26	-5.27
1879	-0.33	-5.47
1878.75	0.98	-4.91
1878.5	0.25	-5.13
1878.25	2.29	-4.76
1878	0.85	-4.78
1877.75	1.06	-4.96
1877.5	1.49	-4.59
1877.25	-9999.99	-9999.99
1877	-0.82	-4.93
1876.75	0.19	-5
1876.5	1.47	-4.34
1876.25	1.08	-4.73
1876	-0.68	-5.19
1875.75	-0.31	-5.32
1875.5	1.18	-4.71
1875.25	0.9	-4.85
1875	-1.06	-5.34
1874.75	-0.29	-5.2
1874.5	0.82	-4.93
1874.25	0.4	-4.85
1874	0.4	-4.89
1873.75	0.48	-5.16
1873.5	0.18	-5.01
1873.25	0.19	-5.07
1873	0.3	-5.32
1872.75	0.7	-4.9
1872.5	-9999.99	-9999.99
1872.25	0.58	-5.08
1872	1.97	-4.9
1871.75	0.16	-7.72
1871.5	-0.12	-4.85
1871.25	-0.29	-5.59
1871	1.38	-5.08
1870.75	-0.66	-5.37
1870.5	0.03	-5.31
1870.25	-0.37	-5.48
1870	-0.55	-5.19
1869.75	-0.6	-4.59
1869.5	-0.34	-5.15
1869.25	0.41	-5.12
1869	-0.35	-4.91
1868.75	0.74	-4.9
1868.5	-0.36	-5.17
1868.25	-1.05	-5.38
1868	0.19	-5.11
1867.75	1.01	-4.97
1867.5	-0.06	-4.85
1867.25	0.83	-5.04
1867	-0.4	-5.11
1866.75	0.43	-5.07
1866.5	0.33	-4.95
1866.25	-0.06	-4.8
1866	-0.1	-4.71
1865.75	-9999.99	-9999.99
1865.5	-0.57	-5.3
1865.25	0.13	-4.75
1865	0.22	-4.73
1864.75	-0.15	-5.13
1864.5	-0.23	-5.26
1864.25	0.42	-4.82
1864	0.36	-4.81
1863.75	-0.2	-5.3
1863.5	0.08	-5.28
1863.25	1.04	-4.26
1863	0.6	-4.63
1862.75	0.07	-5.14
1862.5	1.1	-5.13
1862.25	0.55	-4.61
1862	0.77	-4.72
1861.75	0.83	-4.91
1861.5	0.63	-4.97
1861.25	-0.63	-5.03
1861	-0.86	-5
1860.75	0.27	-4.92
1860.5	0.38	-4.86
1860.25	0.52	-4.51
1860	0.4	-4.89
1859.75	0.67	-4.96
1859.5	-0.2	-4.88
1859.25	-0.46	-4.75
1859	-0.53	-5.17
1858.75	0.97	-4.74
1858.5	0.43	-4.52
1858.25	-1.43	-5.23
1858	-0.08	-5.09
1857.75	0.4	-4.92
1857.5	-0.31	-5.17
1857.25	-1.03	-5.22
1857	-0.37	-5.06
1856.75	-0.04	-5.22
1856.5	0.33	-4.83
1856.25	0.08	-4.5
1856	0.12	-4.76
1855.75	-0.19	-4.98
1855.5	0.02	-4.68
1855.25	-0.21	-4.7
1855	0.5	-4.62
1854.75	0.33	-4.83
1854.5	-0.07	-4.85
1854.25	-0.04	-4.71
1854	-0.59	-4.8
1853.75	0.07	-5.01
1853.5	0.14	-4.98
1853.25	0.94	-4.34
1853	1.24	-4.43
1852.75	-0.04	-4.93
1852.5	0.85	-4.57
1852.25	-0.39	-4.38
1852	0.23	-4.77
1851.75	0.93	-4.93
1851.5	1.25	-4.62
1851.25	0.25	-4.51
1851	1.82	-4.31
1850.75	1.25	-4.93
1850.5	-9999.99	-9999.99
1850.25	0.2	-4.75
1850	2.12	-4.13
1849.75	0.65	-4.88
1849.5	0.55	-4.79
1849.25	0.17	-4.48
1849	2.48	-4.07
1848.75	0.35	-5.23
1848.5	-0.02	-5.08
1848.25	1.63	-4.27
1848	0.05	-4.9
1847.75	0.42	-5.22
1847.5	1.18	-4.89
1847.25	2.57	-4.21
1847	-0.2	-4.83
1846.75	1.76	-4.81
1846.5	2.46	-4.6
1846.25	0.72	-4.39
1846	2.19	-4.3
1845.75	2.51	-4.66
1845.5	0.69	-4.83
1845.25	0.42	-4.63
1845	1.44	-4.24
1844.75	1.14	-4.68
1844.5	0.59	-4.91
1844.25	2.16	-4.39
1844	0.88	-4.65
1843.75	0.21	-4.91
1843.5	0.78	-4.78
1843.25	-0.62	-4.99
1843	-0.18	-4.83
1842.75	0.8	-5.26
1842.5	0.09	-5.06
1842.25	-0.11	-4.8
1842	2.43	-4.37
1841.75	0.24	-5.1
1841.5	0.01	-4.91
1841.25	-0.81	-5.05
1841	1.87	-4.5
1840.75	1.03	-4.94
1840.5	1.82	-4.61
1840.25	0.31	-4.48
1840	1.33	-4.53
1839.75	2.45	-4.36
1839.5	2.13	-4.54
1839.25	1.5	-4.24
1839	1.85	-4.38
1838.75	1.49	-4.62
1838.5	1.01	-4.91
1838.25	0.63	-4.38
1838	1.04	-4.61
1837.75	1.52	-4.82
1837.5	1.18	-4.75
1837.25	0.45	-4.57
1837	1.37	-4.52
1836.75	0.37	-5
1836.5	0.51	-4.95
1836.25	0.28	-4.78
1836	0.42	-4.63
1835.75	2.19	-4.53
1835.5	0.47	-4.91
1835.25	0.12	-4.74
1835	1.37	-4.58
1834.75	1.97	-4.68
1834.5	1.49	-4.55
1834.25	-0.48	-5.16
1834	1.73	-4.16
1833.75	0.67	-4.78
1833.5	0.24	-4.69
1833.25	-0.35	-4.58
1833	-0.56	-4.75
1832.75	0.41	-4.87
1832.5	0.86	-4.89
1832.25	0.19	-4.82
1832	-0.41	-4.91
1831.75	0.84	-5.09
1831.5	0.58	-5.03
1831.25	0.05	-5.06
1831	0.92	-4.65
1830.75	0.08	-5.34
1830.5	0.49	-4.8
1830.25	-0.15	-5.12
1830	-0.78	-4.97
1829.75	-0.13	-5.28
1829.5	-0.48	-5.42
1829.25	-0.17	-5.25
1829	-0.89	-5.14
1828.75	-0.12	-5.04
1828.5	1.15	-4.87
1828.25	-0.28	-5.04
1828	-0.35	-4.81
1827.75	-0.3	-5.13
1827.5	0.34	-5.15
1827.25	-0.2	-5.13
1827	-0.78	-5.18
1826.75	0.54	-4.86
1826.5	0.39	-5
1826.25	0.22	-4.95
1826	-0.5	-5.18
1825.75	-0.29	-4.85
1825.5	1.1	-4.76
1825.25	-0.07	-5.18
1825	-0.4	-5.04
1824.75	1.39	-4.51
1824.5	-0.11	-5.11
1824.25	-0.75	-5.25
1824	0.68	-4.36
1823.75	0.77	-4.9
1823.5	1.13	-4.84
1823.25	-0.65	-5.11
1823	0.8	-4.47
1822.75	0.83	-4.85
1822.5	2	-4.6
1822.25	-0.61	-5.2
1822	0.19	-4.56
1821.75	0.46	-4.76
1821.5	0.82	-4.99
1821.25	1.23	-4.37
1821	0.37	-4.43
1820.75	1.24	-4.62
1820.5	-0.03	-5.2
1820.25	0.67	-4.41
1820	0.53	-4.6
1819.75	1.05	-4.84
1819.5	1.19	-4.93
1819.25	-0.03	-5.07
1819	0.32	-4.86
1818.75	1.6	-4.66
1818.5	0.53	-4.96
1818.25	1	-4.71
1818	-0.57	-4.91
1817.75	0.22	-4.94
1817.5	0.82	-5.11
1817.25	0.11	-4.91
1817	0.39	-4.57
1816.75	-0.11	-4.78
1816.5	-0.28	-5.19
1816.25	0.56	-4.82
1816	0.55	-4.72
1815.75	-0.47	-5.17
1815.5	-0.16	-5.13
1815.25	-1.22	-5.32
1815	-0.31	-4.7
1814.75	-0.37	-5.08
1814.5	0.26	-5.18
1814.25	0.11	-5.02
1814	-0.64	-5.24
1813.75	1.03	-4.95
1813.5	0.43	-4.94
1813.25	-0.51	-4.81
1813	0.24	-4.81
1812.75	0.5	-5.09
1812.5	1.14	-4.88
1812.25	-0.54	-5.01
1812	-0.18	-5.25
1811.75	-0.04	-5.12
1811.5	0.21	-5.24
1811.25	-0.39	-5.18
1811	-0.69	-5.08
1810.75	-0.24	-4.98
1810.5	0.12	-5.12
1810.25	-0.35	-4.99
1810	-0.68	-4.9
1809.75	-0.4	-5.12
1809.5	-0.23	-5.2
1809.25	-0.22	-4.94
1809	-0.43	-4.8
1808.75	-0.46	-5.21
1808.5	0.53	-5.1
1808.25	-0.12	-4.66
1808	-0.82	-4.83
1807.75	0.14	-5.02
1807.5	1.5	-4.83
1807.25	0.19	-4.75
1807	0.78	-4.82
1806.75	-9999.99	-9999.99
1806.5	-9999.99	-9999.99
1806.25	-1	-4.99