Year Kilotonnes
1850 13.83
1851 15.81
1852 15.93
1853 18.4
1854 18.06
1855 18.5
1856 21.49
1857 25.32
1858 29.86
1859 32.5
1860 34.14
1861 27.46
1862 30.36
1863 33.27
1864 32.13
1865 32.96
1866 34.34
1867 36.39
1868 38.15
1869 39.82
1870 43.42
1871 45.2
1872 44.27
1873 47.72
1874 49.76
1875 52.57
1876 54.78
1877 55.88
1878 54.61
1879 53.97
1880 54.98
1881 58.68
1882 63.57
1883 67.93
1884 65.95
1885 66.76
1886 73.42
1887 77.61
1888 83.57
1889 89.83
1890 94.91
1891 100.6
1892 105.1
1893 105.9
1894 109.8
1895 111.3
1896 119.6
1897 124.5
1898 119.5
1899 126.5
1900 140.1
1901 150.3
1902 154.5
1903 154.1
1904 161.7
1905 166.3
1906 171.3
1907 170.8
1908 185.8
1909 193.5
1910 193.7
1911 195.9
1912 225.3
1913 229.7
1914 191.6
1915 198.3
1916 219
1917 217.1
1918 208
1919 198.1
1920 166.9
1921 201.6
1922 177.3
1923 184.4
1924 201.4
1925 214.7
1926 204.7
1927 238.2
1928 228.5
1929 247.4
1930 223.9
1931 212.7
1932 186.6
1933 173.8
1934 174.8
1935 180
1936 147.7
1937 120.9
1938 176.9
1939 162.6
1940 179.3
1941 207.7
1942 223.3
1943 238.8
1944 241.3
1945 254.6
1946 262.3
1947 288.7
1948 307.2
1949 330
1950 296.5
1951 307.9
1952 356.6
1953 381
1954 383.7
1955 380.3
1956 382.5
1957 473.5
1958 517.6
1959 468.3
1960 406.5
1961 440.9
1962 529.6
1963 568.2
1964 608.5
1965 642.1
1966 670
1967 755.6
1968 900.3
1969 860.8
1970 936.6
1971 1033
1972 1125
1973 1231
1974 1437
1975 1502
1976 1453
1977 1420
1978 1299
1979 1257
1980 1418
1981 1386
1982 1374
1983 1382
1984 1262
1985 1196
1986 1134
1987 1070
1988 893.5
1989 1061
1990 1089
1991 1082
1992 1068
1993 1005
1994 982
1995 904
1996 790.5
1997 869.5
1998 803.5
1999 820
2000 761