Year Kilotonnes
1850 418.5
1851 451.7
1852 483.5
1853 514.5
1854 545.5
1855 545
1856 559.7
1857 536.3
1858 533
1859 590.7
1860 659.7
1861 686.9
1862 665.7
1863 706.7
1864 758.8
1865 802.6
1866 826.3
1867 847.8
1868 832.9
1869 872
1870 890
1871 941.4
1872 990.4
1873 1042
1874 1012
1875 1067
1876 1059
1877 1068
1878 1053
1879 1056
1880 1155
1881 1214
1882 1228
1883 1279
1884 1250
1885 1238
1886 1231
1887 1266
1888 1321
1889 1372
1890 1408
1891 1440
1892 1413
1893 1268
1894 1455
1895 1471
1896 1516
1897 1559
1898 1564
1899 1678
1900 1702
1901 1670
1902 1739
1903 1758
1904 1771
1905 1800
1906 1872
1907 1963
1908 1922
1909 1946
1910 1970
1911 2030
1912 1936
1913 2132
1914 2079
1915 2120
1916 2213
1917 2207
1918 2073
1919 2043
1920 2122
1921 1463
1922 1979
1923 2124
1924 2250
1925 2134
1926 1201
1927 2262
1928 2134
1929 2271
1930 2195
1931 2066
1932 2004
1933 2000
1934 2174
1935 2219
1936 2336
1937 2402
1938 2291
1939 2321
1940 2429
1941 2433
1942 2479
1943 2454
1944 2441
1945 2354
1946 2410
1947 2504
1948 2508
1949 2536
1950 2551
1951 2843
1952 2923
1953 2956
1954 3049
1955 3187
1956 3220
1957 3250
1958 3239
1959 3189
1960 3076
1961 3144
1962 3372
1963 3409
1964 3535
1965 3598
1966 3450
1967 3520
1968 3455
1969 3271
1970 3212
1971 3019
1972 2946
1973 2995
1974 2777
1975 2684
1976 2564
1977 2540
1978 2612
1979 2756
1980 2427
1981 2199
1982 2093
1983 1923
1984 1849
1985 1859
1986 1939
1987 1937
1988 1905
1989 1848
1990 1861
1991 1768
1992 1732
1993 1558
1994 1338
1995 1182
1996 1014
1997 835
1998 804
1999 615
2000 595