Year Tonnes
1830 613.22416
1831 1349.09314
1832 1839.67247
1833 2452.89662
1850 6254.88638
1855 17783.50051
1858 33972.61821
1859 51142.89456
1860 73832.18831
1861 102653.72361
1862 128654.4278
1863 155881.5803
1864 186420.14324
1865 215609.61303
1866 307838.526
1867 413681.01522
1868 501740.00394
1869 621196.06941
1870 750831.65586
1871 925845.8298
1872 1105520.50733
1873 1274157.15006
1874 1478851.37313
1875 1714452.09363
1876 2006960.01575
1877 2305477.53459
1878 2695610.74225
1879 3095923.47089
1880 3565530.52908
1881 4060157.13282
1882 4581152.37524
1883 5174140.1335
1884 5776203.60926
1885 6431985.52103
1886 7104569.77466
1887 7816277.7294
1888 8558646.89191
1889 9360376.15266
1890 10268315.83713
1891 11267993.85524
1892 12326173.45778
1893 13566480.63447
1894 14829722.39457
1895 16281223.97037
1896 17758848.89519
1897 19467291.3921
1898 21383371.58802
1899 23606186.50647
1900 26124207.53332
1901 28709315.28277
1902 31206118.75385
1903 33648467.91993
1904 36365786.79728
1905 38791333.6215
1906 41557955.72094
1907 44656822.66778
1908 47774699.56343
1909 51065996.25023
1910 54293762.91452
1911 57640249.7753
1912 61431078.85908
1913 65549124.35217
1914 69265753.31314
1915 72677119.28956
1916 76313047.95168
1917 79659289.5228
1918 80993787.92975
1919 82133648.98979
1920 83173063.93317
1921 84300292.5756
1922 85675018.48715
1923 87193606.78555
1924 89002863.33361
1925 90788572.0741
1926 93375887.43051
1927 96592616.06001
1928 100166241.14794
1929 104014835.94715
1930 109246987.08575
1931 115532657.3233
1932 122614537.80421
1933 130529054.0433
1934 140102586.91238
1935 150939238.89672
1936 163365490.53666
1937 176071862.97079
1938 189482829.95945
1939 203058263.66658
1940 219333478.04023
1941 233631903.02656
1942 243472188.40324
1943 256033839.93668
1944 267798422.71296
1945 280253863.8227
1946 294251808.9729
1947 311107746.62169
1948 329044430.52194
1949 349434133.68858
1950 372162183.20453
1951 396794661.65746
1952 423172621.34628
1953 451079471.49931
1954 481558674.33937
1955 516119619.80251
1956 554012457.39153
1957 595479288.00299
1958 639740458.44571
1959 686275709.34627
1960 734726181.92894
1961 784691563.46507
1962 837132530.91651
1963 893372054.07608
1964 953182872.07179
1965 1016630845.17794
1966 1083635395.7405
1967 1153698585.74531
1968 1225730225.28891
1969 1300746549.44161
1970 1379649365.64632
1971 1463395180.94062
1972 1551522728.11483
1973 1643389348.2541
1974 1738772440.99002
1975 1839052619.18603
1976 1943201383.28872
1977 2050900960.54077
1978 2162304902.27068
1979 2274635916.2787
1980 2391394899.26795
1981 2505947992.32544
1982 2622666993.09975
1983 2741059237.30446
1984 2860517019.80157
1985 2989348914.67242
1986 3118532677.56363
1987 3253158804.83391
1988 3391484636.07847
1989 3526913105.83365
1990 3653889997.63446
1991 3776277887.79084
1992 3888084717.79084
1993 4004317616.79084
1994 4112981827.79084
1995 4216416896.79084
1996 4322587547.79084
1997 4429821628.79084
1998 4548966125.79084
1999 4672001309.79084
2000 4793830050.79084
2001 4917283272.79084
2002 5045631939.79084
2003 5172774163.79084
2004 5298988636.79084
2005 5416237294.79084
2006 5536525895.79084
2007 5656726488.79084
2008 5780627084.79084
2009 5887758489.79084
2010 5991926958.79084
2011 6105611292.79084
2012 6221426153.79084
2013 6324780548.79084
2014 6429994112.79084