Year Total
1800 4.93
1801 4.919
1802 4.909
1803 4.898
1804 4.888
1805 4.877
1806 4.867
1807 4.856
1808 4.846
1809 4.835
1810 4.825
1811 4.814
1812 4.803
1813 4.793
1814 4.782
1815 4.772
1816 4.761
1817 4.751
1818 4.74
1819 4.73
1820 4.719
1821 4.709
1822 4.698
1823 4.687
1824 4.677
1825 4.666
1826 4.656
1827 4.645
1828 4.635
1829 4.624
1830 4.614
1831 4.603
1832 4.593
1833 4.582
1834 4.572
1835 4.561
1836 4.55
1837 4.54
1838 4.529
1839 4.519
1840 4.508
1841 4.498
1842 4.487
1843 4.477
1844 4.466
1845 4.456
1846 4.445
1847 4.434
1848 4.424
1849 4.413
1850 4.403
1851 4.392
1852 4.382
1853 4.371
1854 4.361
1855 4.35
1856 4.34
1857 4.329
1858 4.212
1859 4.446
1860 3.926
1861 4.251
1862 4.121
1863 4.316
1864 4.251
1865 4.225
1866 4.316
1867 4.199
1868 4.472
1869 4.55
1870 4.589
1871 4.433
1872 4.316
1873 4.55
1874 4.42
1875 4.511
1876 4.641
1877 4.381
1878 4.303
1879 4.407
1880 4.55
1881 4.446
1882 4.511
1883 4.537
1884 4.641
1885 4.589
1886 4.68
1887 4.641
1888 4.589
1889 4.628
1890 4.264
1891 4.589
1892 4.446
1893 4.485
1894 4.485
1895 4.628
1896 4.563
1897 4.602
1898 4.446
1899 4.485
1900 4.485
1901 4.498
1902 4.576
1903 4.407
1904 4.459
1905 4.355
1906 4.394
1907 4.264
1908 4.316
1909 4.433
1910 4.355
1911 4.121
1912 4.004
1913 4.056
1914 3.9
1915 3.12
1916 2.34
1917 2.34
1918 2.34
1919 2.951
1920 3.536
1921 3.952
1922 3.9
1923 4.017
1924 3.939
1925 3.835
1926 3.692
1927 3.627
1928 3.562
1929 3.341
1930 3.614
1931 3.445
1932 3.432
1933 3.198
1934 3.055
1935 2.951
1936 2.951
1937 2.847
1938 2.808
1939 2.808
1940 2.821
1941 2.899
1942 2.756
1943 2.834
1944 2.483
1945 1.859
1946 2.626
1947 2.847
1948 2.847
1949 2.977
1950 2.739
1951 2.694
1952 2.61
1953 2.538
1954 2.476
1955 2.426
1956 2.386
1957 2.357
1958 2.338
1959 2.327
1960 2.324
1961 2.325
1962 2.33
1963 2.336
1964 2.34
1965 2.341
1966 2.336
1967 2.326
1968 2.312
1969 2.294
1970 2.273
1971 2.255
1972 2.239
1973 2.227
1974 2.218
1975 2.209
1976 2.195
1977 2.172
1978 2.138
1979 2.093
1980 2.039
1981 1.978
1982 1.915
1983 1.853
1984 1.794
1985 1.738
1986 1.684
1987 1.631
1988 1.577
1989 1.524
1990 1.473
1991 1.425
1992 1.381
1993 1.343
1994 1.312
1995 1.286
1996 1.265
1997 1.247
1998 1.232
1999 1.22
2000 1.214
2001 1.217
2002 1.23
2003 1.253
2004 1.285
2005 1.323
2006 1.363
2007 1.401
2008 1.434
2009 1.459
2010 1.478
2011 1.491
2012 1.5
2013 1.509
2014 1.518
2015 1.528
2016 1.538
2017 1.549
2018 1.559
2019 1.568
2020 1.578
2021 1.587
2022 1.596
2023 1.605
2024 1.613
2030 1.659
2040 1.719
2050 1.762
2070 1.818
2080 1.836
2099 1.859