Year Tonnes 1830 18335 1831 40337 1832 55005 1833 73340 1850 187017 1855 531715 1858 1015759 1859 1529139 1860 2207534 1861 3069279 1862 3846683 1863 4660757 1864 5573840 1865 6446586 1866 9204170 1867 12368791 1868 15001697 1869 18573355 1870 22449374 1871 27682183 1872 33054338 1873 38096463 1874 44216686 1875 51260993 1876 60006788 1877 68932266 1878 80596993 1879 92566081 1880 106607024 1881 121396035 1882 136973451 1883 154703396 1884 172704699 1885 192312148 1886 212421976 1887 233701577 1888 255897928 1889 279869107 1890 307015908 1891 336905625 1892 368544501 1893 405628872 1894 443398972 1895 486797917 1896 530977933 1897 582059243 1898 639348784 1899 705809492 1900 781096669 1901 858389695 1902 933042481 1903 1006067119 1904 1087313171 1905 1159835430 1906 1242555616 1907 1335209705 1908 1428432179 1909 1526839791 1910 1623347897 1911 1723405659 1912 1836748962 1913 1959875821 1914 2071000589 1915 2172998194 1916 2281710076 1917 2381760504 1918 2421661131 1919 2455742229 1920 2486820054 1921 2520523451 1922 2561626854 1923 2607031648 1924 2661127232 1925 2714518752 1926 2791877784 1927 2888055860 1928 2994904906 1929 3109975366 1930 3266413253 1931 3454350670 1932 3666094251 1933 3902733095 1934 4188975448 1935 4512984234 1936 4884521007 1937 5264433208 1938 5665412324 1939 6071308887 1940 6557927121 1941 6985440649 1942 7279658727 1943 7655243868 1944 8006997176 1945 8379406695 1946 8797936073 1947 9301917552 1948 9838212635 1949 10447851385 1950 11127405157 1951 11863900105 1952 12652583797 1953 13486980311 1954 14398288483 1955 15431638082 1956 16564609070 1957 17804440105 1958 19127820068 1959 20519193545 1960 21967830894 1961 23461763027 1962 25029713555 1963 26711238407 1964 28499542632.00001 1965 30396595409 1966 32399987519 1967 34494830942 1968 36648529715 1969 38891468600 1970 41250611048 1971 43754555992 1972 46389511845 1973 49136263526.99998 1974 51988155433 1975 54986466982 1976 58100446712 1977 61320593426 1978 64651498208 1979 68010121842.99998 1980 71501138846 1981 74926201187 1982 78416022748.00003 1983 81955873190.00003 1984 85527582528.00003 1985 89379571677.00003 1986 93242081449.00003 1987 97267314346.00003 1988 101403165965.00003 1989 105452388376.00003 1990 109248914150.00003 1991 112908231785.00005