Year Kilotonnes
1850 0.59
1851 0.7484
1852 1.494
1853 2.221
1854 2.932
1855 3.67
1856 4.518
1857 5.349
1858 11.96
1859 13.73
1860 15.68
1861 16.85
1862 19.65
1863 21.21
1864 20.98
1865 31.77
1866 29.69
1867 27.77
1868 28.3
1869 26.73
1870 33.36
1871 35.64
1872 38.91
1873 39.36
1874 41.59
1875 44.96
1876 46
1877 48.84
1878 48.74
1879 52.06
1880 60.13
1881 65.73
1882 77.82
1883 88.76
1884 103.1
1885 100.6
1886 107.3
1887 122
1888 160.7
1889 138.8
1890 151.6
1891 175.7
1892 172.2
1893 187.3
1894 181.1
1895 179
1896 192.1
1897 203.5
1898 219.8
1899 256.1
1900 287.2
1901 347.2
1902 361
1903 397.4
1904 457.8
1905 507.8
1906 541.6
1907 565.7
1908 670.4
1909 649.3
1910 721.8
1911 818.4
1912 934.8
1913 1093
1914 957.7
1915 950.2
1916 1187
1917 1322
1918 1408
1919 1132
1920 1199
1921 1021
1922 858.2
1923 1283
1924 1121
1925 1107
1926 1066
1927 1280
1928 1394
1929 1589
1930 1622
1931 1324
1932 1173
1933 1301
1934 1571
1935 1586
1936 1688
1937 1966
1938 1898
1939 2101
1940 2252
1941 2479
1942 2569
1943 2629
1944 2593
1945 2356
1946 2286
1947 2542
1948 2655
1949 2417
1950 2515
1951 2714
1952 2609
1953 2522
1954 2569
1955 2684
1956 2954
1957 2792
1958 2404
1959 2559
1960 2650
1961 2593
1962 2587
1963 2621
1964 2752
1965 2908
1966 2829
1967 3142
1968 3201
1969 2987
1970 3270
1971 3132
1972 2926
1973 2909
1974 2800
1975 2730
1976 2590
1977 2450
1978 2135
1979 2240
1980 2322
1981 2146
1982 1806
1983 1812
1984 1978
1985 1886
1986 1664
1987 1844
1988 1886
1989 1656
1990 1630
1991 1811
1992 1568
1993 1295
1994 1257
1995 1313
1996 1263
1997 1262
1998 1268
1999 1250
2000 1190