Year Tonnes
1865 150347
1866 359366
1867 586720
1868 762736
1869 1030427
1870 1188108
1871 1386126
1872 1631815
1873 1870170
1874 2126860
1875 2478892
1876 2753917
1877 3201291
1878 3527654
1879 3652332
1880 3791678
1881 3975028
1882 4129042
1883 4290390
1884 4466406
1885 4660757
1886 4796436
1887 5042125
1888 5309816
1889 5713186
1890 6079886
1891 6483256
1892 6893960
1893 7319332
1894 7711701
1895 8085735
1896 8529442
1897 8844804
1898 9369185
1899 10040246
1900 11078007
1901 12027760
1902 13076522
1903 14282965
1904 15650756
1905 17183562
1906 18764039
1907 20645210
1908 22368700
1909 24326878
1910 26211716
1911 28441252
1912 30439767
1913 32478619
1914 34143437
1915 35181198
1916 35694578
1917 36086947
1918 36545322
1919 37484074
1920 38888535
1921 39731945
1922 40744037
1923 42218171
1924 44671394
1925 47040276
1926 50050883
1927 53332848
1928 56460799
1929 60014122
1930 63989150
1931 67931175
1932 71935539
1933 76603630
1934 82401157
1935 88341697
1936 94212564
1937 98462617
1938 103101372
1939 108011485
1940 113486316
1941 119111494
1942 124061944
1943 130185834
1944 137215473
1945 144311118
1946 151340757
1947 158825104
1948 166533138
1949 174508863
1950 184006393
1951 194200653
1952 204684606
1953 217662119
1954 231109008
1955 244742914
1956 259117554
1957 275105674
1958 291159800
1959 308372698
1960 325193227
1961 342556472
1962 364188105
1963 386857499
1964 413193893
1965 440582716
1966 472129917
1967 505653631
1968 541967932
1969 580775793
1970 623415669
1971 671149008
1972 725006237
1973 784492311
1974 845628535
1975 911326507
1976 985047875
1977 1066620290
1978 1143876646
1979 1219453516
1980 1295217403
1981 1375091997
1982 1462080571
1983 1552622468
1984 1648419176
1985 1755136210
1986 1872018168
1987 2001925310
1988 2128235125
1989 2267551789
1990 2413410381
1991 2562030224
1992 2715138475
1993 2874275274
1994 3031123865
1995 3203098831
1996 3391303939
1997 3589838986
1998 3790453222
1999 3987224442
2000 4203375757
2001 4397928442
2002 4603614139
2003 4822138003
2004 5047559494
2005 5284950073
2006 5546564854
2007 5831223063
2008 6115202877
2009 6393047800
2010 6691050222
2011 7011890720
2012 7341451344
2013 7666222866
2014 8012204316