YearAD FinalCO2 FinalCH4 FinalN2O(ppbv) 1500 282.2 725.7 285.1 1501 282.3 725.5 285.1 1502 282.3 725.3 285.1 1503 282.4 725.1 285.1 1504 282.4 724.9 285.1 1505 282.5 724.7 285.1 1506 282.5 724.5 285.1 1507 282.6 724.3 285.1 1508 282.6 724.1 285.1 1509 282.7 723.9 285.1 1510 282.7 723.7 285.1 1511 282.7 723.5 285.1 1512 282.8 723.3 285.1 1513 282.8 723.1 285.1 1514 282.9 722.9 285.1 1515 282.9 722.7 285.1 1516 282.9 722.5 285.1 1517 283 722.3 285.1 1518 283 722.1 285.1 1519 283.1 721.9 285.1 1520 283.1 721.7 285.1 1521 283.1 721.5 285.1 1522 283.2 721.3 285.1 1523 283.2 721.1 285.1 1524 283.2 720.9 285.1 1525 283.2 720.7 285.1 1526 283.2 720.5 285.1 1527 283.2 720.3 285.1 1528 283.2 720.1 285.1 1529 283.2 719.9 285.1 1530 283.2 719.7 285.1 1531 283.2 719.5 285.1 1532 283.2 719.5 285.1 1533 283.2 719.5 285.1 1534 283.2 719.5 285.1 1535 283.2 719.5 285.1 1536 283.2 719.5 285.1 1537 283.2 719.5 285.1 1538 283.1 719.5 285.1 1539 283.1 719.5 285.1 1540 283.1 719.5 285.1 1541 283.1 719.5 285.1 1542 283.1 719.5 285.1 1543 283 719.5 285.1 1544 283 719.5 285.1 1545 283 719.5 285.1 1546 283 719.5 285.1 1547 282.9 719.5 285.1 1548 282.9 719.5 285.1 1549 282.8 719.5 285.1 1550 282.8 719.5 285.1 1551 282.8 719.5 285.1 1552 282.7 719.6 285.1 1553 282.7 719.7 285.1 1554 282.7 719.8 285.1 1555 282.6 719.9 285.1 1556 282.5 720 285.1 1557 282.5 720.1 285.1 1558 282.4 720.2 285.1 1559 282.3 720.3 285.1 1560 282.2 720.4 285.1 1561 282.1 720.5 285.1 1562 282 720.4 285.1 1563 282 720.3 285.1 1564 281.9 720.2 285.1 1565 281.8 720.1 285.1 1566 281.7 720 285.1 1567 281.6 719.9 285.1 1568 281.5 719.8 285.1 1569 281.3 719.7 285.1 1570 281.2 719.6 285.1 1571 281.1 719.5 285.1 1572 280.9 719.5 285.1 1573 280.8 719.5 285.1 1574 280.6 719.5 285.1 1575 280.5 719.5 285.1 1576 280.4 719.5 285.1 1577 280.2 719.5 285.1 1578 280 719.5 285.1 1579 279.9 719.5 285.1 1580 279.7 719.5 285.1 1581 279.5 719.5 285.1 1582 279.3 719.5 285.1 1583 279.2 719.5 285.1 1584 279 719.5 285.1 1585 278.8 719.5 285.1 1586 278.6 719.5 285.1 1587 278.5 719.5 285.1 1588 278.3 719.5 285.1 1589 278.2 719.5 285.1 1590 278 719.5 285.1 1591 277.8 719.5 285.1 1592 277.6 719.7 285.1 1593 277.5 719.9 285.1 1594 277.3 720.1 285.1 1595 277.1 720.3 285.1 1596 276.9 720.5 285.1 1597 276.8 720.7 285.1 1598 276.7 720.9 285.1 1599 276.5 721.1 285.1 1600 276.4 721.3 285.1 1601 276.3 721.5 285.1 1602 276.1 721.7 285.1 1603 276 721.9 285.1 1604 275.9 722.1 285.1 1605 275.8 722.3 285.1 1606 275.7 722.5 285.1 1607 275.7 722.7 285.1 1608 275.6 722.9 285.1 1609 275.5 723.1 285.1 1610 275.5 723.3 285.1 1611 275.5 723.5 285.1 1612 275.4 723.5 285.1 1613 275.4 723.5 285.1 1614 275.3 723.5 285.1 1615 275.3 723.5 285.1 1616 275.3 723.5 285.1 1617 275.3 723.5 285.1 1618 275.3 723.5 285.1 1619 275.3 723.5 285.1 1620 275.3 723.5 285.1 1621 275.3 723.5 285.1 1622 275.3 723.5 285.1 1623 275.4 723.5 285.1 1624 275.4 723.5 285.1 1625 275.4 723.5 285.1 1626 275.4 723.5 285.1 1627 275.5 723.5 285.1 1628 275.5 723.5 285.1 1629 275.5 723.5 285.1 1630 275.6 723.5 285.1 1631 275.7 723.5 285.1 1632 275.7 723.7 285.1 1633 275.8 723.9 285.1 1634 275.8 724.1 285.1 1635 275.9 724.3 285.1 1636 275.9 724.5 285.1 1637 276 724.7 285.1 1638 276 724.9 285.1 1639 276.1 725.1 285.1 1640 276.1 725.3 285.1 1641 276.1 725.5 285.1 1642 276.2 725.7 285.1 1643 276.2 725.9 285.1 1644 276.3 726.1 285.1 1645 276.3 726.3 285.1 1646 276.3 726.5 285.1 1647 276.3 726.7 285.1 1648 276.4 726.9 285.1 1649 276.4 727.1 285.1 1650 276.4 727.3 285.1 1651 276.4 727.5 285.1 1652 276.4 728 285.1 1653 276.5 728.5 285.1 1654 276.5 729 285.1 1655 276.5 729.5 285.1 1656 276.5 730 285.1 1657 276.5 730.5 285.1 1658 276.5 730.7 285.1 1659 276.5 730.9 285.1 1660 276.5 731.1 285.1 1661 276.5 731.4 285.1 1662 276.5 731.6 285.1 1663 276.5 731.8 285.1 1664 276.5 732 285.1 1665 276.5 732.2 285.1 1666 276.5 732.4 285.1 1667 276.5 732.6 285.1 1668 276.4 732.9 285.1 1669 276.4 733.1 285.1 1670 276.4 733.3 285.1 1671 276.4 733.5 285.1 1672 276.4 733.7 285.1 1673 276.4 733.9 285.1 1674 276.4 734.2 285.1 1675 276.4 734.4 285.1 1676 276.4 734.6 285.1 1677 276.4 734.8 285.1 1678 276.4 735 285.1 1679 276.4 735.3 285.1 1680 276.4 735.5 285.1 1681 276.4 735.7 285.1 1682 276.4 735.9 285.1 1683 276.4 736.1 285.1 1684 276.4 736.4 285.1 1685 276.4 736.6 285.1 1686 276.4 736.8 285.1 1687 276.4 737 285.1 1688 276.5 737.2 285.1 1689 276.5 737.5 285.1 1690 276.5 737.7 285.1 1691 276.5 737.9 285.1 1692 276.5 738.2 285.1 1693 276.6 738.5 285.1 1694 276.6 738.7 285.1 1695 276.6 739 285.1 1696 276.6 739.3 285.1 1697 276.6 739.6 285.1 1698 276.7 739.9 285.1 1699 276.7 740.1 285.1 1700 276.7 740.4 285.1 1701 276.7 740.7 285.1 1702 276.7 741 285.1 1703 276.8 741.3 285.1 1704 276.8 741.5 285.1 1705 276.8 741.8 285.1 1706 276.8 742.1 285.1 1707 276.8 742.4 285.1 1708 276.9 742.7 285.1 1709 276.9 742.9 285.1 1710 276.9 743.2 285.1 1711 276.9 743.5 285.1 1712 276.9 743.6 285.1 1713 277 743.6 285.1 1714 277 743.7 285.1 1715 277 743.8 285.2 1716 277 743.8 285.2 1717 277 743.9 285.2 1718 277 743.9 285.2 1719 277 744 285.2 1720 277 744.1 285.2 1721 277 744.1 285.2 1722 277 744.2 285.2 1723 277 744.3 285.2 1724 277 744.3 285.2 1725 277 744.4 285.2 1726 277 744.4 285.2 1727 277 744.5 285.2 1728 277 745.3 285.2 1729 277 746 285.2 1730 277 746.8 285.3 1731 277 747.5 285.3 1732 277 747.9 285.3 1733 276.9 748.3 285.3 1734 276.9 748.7 285.3 1735 276.9 749.1 285.3 1736 276.9 749.5 285.3 1737 276.9 749.9 285.3 1738 276.9 750.3 285.3 1739 276.9 750.7 285.3 1740 276.9 751.1 285.3 1741 276.9 751.5 285.3 1742 276.9 751.9 285.4 1743 276.9 752.3 285.4 1744 276.9 752.7 285.4 1745 276.9 753.1 285.4 1746 276.9 753.5 285.4 1747 276.9 753.9 285.4 1748 276.9 754.3 285.4 1749 277 754.7 285.4 1750 277 755.1 285.4 1751 277 755.5 285.4 1752 277.1 756.1 285.4 1753 277.1 756.7 285.5 1754 277.1 757.3 285.5 1755 277.2 757.9 285.5 1756 277.3 758.5 285.5 1757 277.3 759.1 285.5 1758 277.4 759.7 285.5 1759 277.5 760.3 285.5 1760 277.6 760.9 285.5 1761 277.7 761.5 285.6 1762 277.8 762.1 285.6 1763 277.8 762.7 285.6 1764 277.9 763.3 285.6 1765 278 763.9 285.6 1766 278.1 764.5 285.6 1767 278.2 765.1 285.6 1768 278.3 765.7 285.6 1769 278.5 766.3 285.7 1770 278.6 766.9 285.7 1771 278.7 767.5 285.7 1772 278.9 768 285.7 1773 279 768.5 285.7 1774 279.1 769.1 285.7 1775 279.3 769.6 285.8 1776 279.5 770.1 285.8 1777 279.6 770.6 285.8 1778 279.8 771.1 285.8 1779 279.9 771.7 285.8 1780 280.1 772.2 285.8 1781 280.2 772.7 285.9 1782 280.4 773.2 285.9 1783 280.5 773.7 285.9 1784 280.7 774.3 285.9 1785 280.8 774.8 285.9 1786 281 775.3 286 1787 281.1 775.8 286 1788 281.3 776.3 286 1789 281.4 776.9 286 1790 281.6 777.4 286 1791 281.8 777.9 286.1 1792 281.9 778.6 286.1 1793 282 779.3 286.1 1794 282.2 779.9 286.1 1795 282.3 780.6 286.2 1796 282.4 781.3 286.2 1797 282.6 782 286.2 1798 282.7 782.7 286.2 1799 282.8 783.3 286.3 1800 282.9 784 286.3 1801 283 784.7 286.3 1802 283.1 785.4 286.3 1803 283.2 786.1 286.4 1804 283.3 786.7 286.4 1805 283.4 787.4 286.4 1806 283.5 788.1 286.4 1807 283.6 788.8 286.5 1808 283.7 789.5 286.5 1809 283.7 790.1 286.5 1810 283.8 790.8 286.6 1811 283.9 791.5 286.6 1812 283.9 792.3 286.6 1813 283.9 793.1 286.7 1814 284 793.9 286.7 1815 284 794.8 286.7 1816 284 795.6 286.8 1817 284.1 796.4 286.8 1818 284.1 797.2 286.8 1819 284.2 798 286.9 1820 284.2 798.8 286.9 1821 284.2 799.6 286.9 1822 284.2 800.4 287 1823 284.3 801.3 287 1824 284.3 802.1 287 1825 284.3 802.9 287.1 1826 284.3 803.7 287.1 1827 284.3 804.5 287.2 1828 284.4 806.3 287.2 1829 284.4 808 287.2 1830 284.4 809.8 287.3 1831 284.4 811.5 287.3 1832 284.4 812.3 287.4 1833 284.5 813.1 287.4 1834 284.5 813.9 287.4 1835 284.5 814.7 287.5 1836 284.5 815.5 287.5 1837 284.5 816.3 287.6 1838 284.6 817.1 287.6 1839 284.6 817.9 287.7 1840 284.6 818.7 287.7 1841 284.6 819.5 287.8 1842 284.7 820.3 287.8 1843 284.7 821.1 287.9 1844 284.7 821.9 287.9 1845 284.8 822.7 288 1846 284.9 823.5 288 1847 284.9 824.3 288.1 1848 285 825.1 288.1 1849 285.1 825.9 288.2 1850 285.2 826.7 288.2 1851 285.3 827.5 288.3 1852 285.4 828.5 288.3 1853 285.5 829.5 288.4 1854 285.6 830.5 288.4 1855 285.7 831.5 288.5 1856 285.8 832.5 288.6 1857 285.9 833.5 288.6 1858 286 834.5 288.7 1859 286.2 835.5 288.7 1860 286.3 836.9 288.8 1861 286.5 838.2 288.9 1862 286.6 839.6 288.9 1863 286.8 840.9 289 1864 287 842.3 289.1 1865 287.2 843.8 289.1 1866 287.4 845.5 289.2 1867 287.6 847.1 289.3 1868 287.8 848.6 289.3 1869 288 850.2 289.4 1870 288.2 851.8 289.5 1871 288.4 853.4 289.5 1872 288.7 855.1 289.6 1873 288.9 856.9 289.7 1874 289.1 858.8 289.7 1875 289.4 860.5 289.8 1876 289.7 862.3 289.9 1877 289.9 864 290 1878 290.2 865.8 290 1879 290.5 867.6 290.1 1880 290.8 869.4 290.2 1881 291.1 871.2 290.3 1882 291.4 872.9 290.3 1883 291.7 874.7 290.4 1884 292 876.5 290.5 1885 292.3 878.3 290.6 1886 292.6 880 290.7 1887 292.9 881.8 290.8 1888 293.1 883.6 290.8 1889 293.4 885.4 290.9 1890 293.7 887.2 291 1891 294 888.9 291.1 1892 294.3 890.6 291.2 1893 294.6 892.2 291.3 1894 294.9 893.9 291.4 1895 295.2 895.6 291.4 1896 295.5 897.2 291.5 1897 295.8 898.9 291.6 1898 296.1 900.5 291.7 1899 296.4 902.2 291.8 1900 296.7 903.8 291.9 1901 297 905.5 292 1902 297.3 907.2 292.1 1903 297.6 908.8 292.2 1904 297.9 910.5 292.3 1905 298.2 912.1 292.4 1906 298.5 913.8 292.5 1907 298.9 915.4 292.6 1908 299.2 917.1 292.7 1909 299.6 918.8 292.8 1910 299.9 920.4 292.9 1911 300.2 922.1 293 1912 300.5 924.9 293.1 1913 300.9 927.8 293.2 1914 301.2 930.6 293.3 1915 301.5 933.5 293.5 1916 301.8 936.4 293.6 1917 302.2 939.2 293.7 1918 302.5 942.8 293.8 1919 302.9 946.3 293.9 1920 303.2 949.9 294 1921 303.5 953.5 294.1 1922 303.9 957.1 294.2 1923 304.2 960.7 294.4 1924 304.6 964.2 294.5 1925 304.9 967.8 294.6 1926 305.2 971.3 294.7 1927 305.6 974.9 294.8 1928 305.9 978.5 295 1929 306.2 982.1 295.1 1930 306.5 985.7 295.2 1931 306.8 989.2 295.3 1932 307.1 993.5 295.5 1933 307.4 997.7 295.6 1934 307.7 1002 295.7 1935 308 1006.2 295.9 1936 308.3 1010.4 296 1937 308.5 1014.7 296.1 1938 308.8 1018.9 296.3 1939 309.1 1023.2 296.4 1940 309.3 1027.4 296.5 1941 309.5 1032.2 296.7 1942 309.8 1037.9 296.8 1943 310 1044.4 297 1944 310.2 1051.7 297.1 1945 310.5 1059.7 297.2 1946 310.8 1068.4 297.4 1947 311 1077.8 297.5 1948 311.3 1087.9 297.7 1949 311.7 1098.6 297.8 1950 312 1109.9 298 1951 312.4 1121.8 298.1 1952 312.8 1134.2 298.3 1953 313.2 1147.1 298.4 1954 313.6 1160.4 298.6 1955 314.1 1174.3 298.7 1956 314.6 1188.5 298.9 1957 315.1 1203.2 299 1958 315.7 1218.2 299.2 1959 315.8 1233.5 299.4 1960 316.8 1249.1 299.5 1961 317.5 1265 299.7 1962 318.3 1281.1 299.8 1963 318.8 1297.5 300 1964 319.4 1314 300.2 1965 319.9 1330.7 300.3 1966 321.2 1347.4 300.5 1967 322 1364.3 300.7 1968 322.9 1381.2 300.8 1969 324.5 1398.2 301 1970 325.5 1415.1 301.2 1971 326.2 1432.1 301.4 1972 327.3 1448.9 301.5 1973 329.5 1465.7 301.7 1974 330.1 1482.4 301.9 1975 331 1498.9 302.1 1976 332 1515.2 302.3 1977 333.7 1531.3 302.4 1978 335.3 1547.1 302.6 1979 336.7 1562.7 302.8 1980 338.5 1578 303 1981 339.8 1593 303.2 1982 341 1607.6 303.4 1983 342.6 1621.8 303.6 1984 344.3 1635.6 303.8 1985 345.7 1649 304 1986 347 1661.9 304.1 1987 348.8 1673 304.3 1988 351.3 1683.4 304.5 1989 352.8 1697.7 304.7 1990 354 1710.1 304.9 1991 355.5 1719.7 305.1 1992 356.3 1724 305.3 1993 357 1732 305.5 1994 358.9 1737.5 305.8 1995 360.9 1741.9 306 1996 362.7 1741 306.2 1997 363.8 1750.8 306.4