Year Tonnes
1851 0
1852 0
1853 0
1854 0
1855 0
1856 0
1857 0
1858 0
1859 0
1860 278692
1861 788405
1862 1144104
1863 1543807
1864 1811498
1865 2233203
1866 2929933
1867 3824681
1868 4558081
1869 5199806
1870 5801194
1871 6494257
1872 7201988
1873 8071067
1874 8962148
1875 9790890
1876 10722308
1877 11789405
1878 12757493
1879 14213292
1880 16420826
1881 18188320
1882 20201503
1883 22629057
1884 25203291
1885 28111222
1886 31000818
1887 34037094
1888 37568415
1889 40997060
1890 44546716
1891 48558414
1892 52713125
1893 56680819
1894 61044549
1895 65639300
1896 70146043
1897 75125829
1898 80743673
1899 86533866
1900 96709791
1901 108158165
1902 119562535
1903 130790889
1904 142345606
1905 154402702
1906 168773675
1907 184263083
1908 201032274
1909 215597598
1910 233048851
1911 252304268
1912 273107159
1913 295516196
1914 320015423
1915 341826739
1916 361115159
1917 381892381
1918 404851468
1919 426607779
1920 452361120
1921 475532893
1922 499896441
1923 524766035
1924 551857831
1925 580115733
1926 607992267
1927 636910229
1928 663220954
1929 686895106
1930 708944777
1931 728508222
1932 748867406
1933 770466036
1934 793183101
1935 818434063
1936 845507524
1937 874388816
1938 902448700
1939 934619291
1940 963683933
1941 998260076
1942 1034794397
1943 1069814247
1944 1104053026
1945 1136777334
1946 1172229890
1947 1210278682
1948 1248734511
1949 1286416603
1950 1341205250
1951 1400287954
1952 1460544098
1953 1520033839
1954 1587935678
1955 1658675775
1956 1731773753
1957 1806360533
1958 1884042261
1959 1967829544
1960 2056031895
1961 2146621463
1962 2241534424
1963 2342563941
1964 2451543514
1965 2572510510
1966 2692843115
1967 2822108532
1968 2956731436
1969 3098989034
1970 3246607786
1971 3399382340
1972 3556868989
1973 3727861199
1974 3900217533
1975 4076101521
1976 4250346360
1977 4438133430
1978 4640148460
1979 4845218101
1980 5065964167
1981 5296325107
1982 5530444722
1983 5755448175
1984 5992043015
1985 6233272943
1986 6473237756
1987 6729344703
1988 6990490108
1989 7268261691
1990 7531966662
1991 7793438430
1992 8061422790
1993 8338820339
1994 8616940287
1995 8898800575
1996 9200965042
1997 9506759839
1998 9823643644
1999 10148987218
2000 10478430498
2001 10803275360
2002 11144629056
2003 11480900290
2004 11823599775
2005 12173772606
2006 12539119483
2007 12911209973
2008 13297114052
2009 13691906939
2010 14082768802
2011 14474587752
2012 14862714033
2013 15234980538.99999
2014 15596242377.99999