Year Kilotonnes
1850 1.684
1851 1.889
1852 2.418
1853 2.64
1854 3.025
1855 3.483
1856 4.017
1857 4.397
1858 5.045
1859 4.953
1860 5.345
1861 5.636
1862 6.349
1863 7.056
1864 7.736
1865 8.39
1866 8.697
1867 9.529
1868 10.28
1869 11.06
1870 11.88
1871 13.91
1872 14.97
1873 15.81
1874 16.61
1875 16.92
1876 17.91
1877 17.65
1878 19.23
1879 20.42
1880 23.11
1881 24.24
1882 25.48
1883 28.08
1884 28.83
1885 29.92
1886 30.6
1887 30.94
1888 34.1
1889 37.14
1890 38.55
1891 40.65
1892 40.58
1893 43.53
1894 45.51
1895 48.57
1896 51.22
1897 54.78
1898 60.1
1899 64.24
1900 70.32
1901 71.23
1902 69.62
1903 72.81
1904 76.05
1905 77.26
1906 83.3
1907 91.76
1908 95.1
1909 98
1910 97.04
1911 103.8
1912 113.4
1913 123.3
1914 106.7
1915 98.22
1916 104
1917 97.91
1918 87.82
1919 114.5
1920 130.7
1921 135.7
1922 123
1923 115.9
1924 148
1925 138
1926 138.8
1927 150.7
1928 164.4
1929 184.2
1930 161.6
1931 151.2
1932 132.8
1933 123.4
1934 124.3
1935 125.9
1936 133.8
1937 154.3
1938 143.2
1939 173.8
1940 198
1941 198.7
1942 213.2
1943 239
1944 230.2
1945 129.2
1946 163.9
1947 190.7
1948 205.9
1949 233.9
1950 243.7
1951 267.4
1952 285
1953 292.5
1954 314.5
1955 328.7
1956 362.9
1957 383
1958 420.7
1959 400.6
1960 428.5
1961 484.2
1962 527.1
1963 566.9
1964 598.6
1965 591.9
1966 638.7
1967 667.3
1968 749.6
1969 854.2
1970 942.7
1971 992.5
1972 1013
1973 990.4
1974 1020
1975 1078
1976 1101
1977 1140
1978 1152
1979 1159
1980 1128
1981 1170
1982 1194
1983 1169
1984 1152
1985 1138
1986 1088
1987 1082
1988 1033
1989 999
1990 938
1991 888
1992 769
1993 709.5
1994 635
1995 545.5
1996 473
1997 350.5
1998 221.5
1999 134
2000 132