Year	Tonnes
1858	436.373
1859	704.064
1860	711.398
1861	550.05
1862	608.722
1863	674.728
1864	638.058
1865	627.057
1866	707.731
1878	1954.511
1879	1855.502
1880	2075.522
1881	2024.184
1882	2405.552
1883	2684.244
1884	2988.605
1885	2698.912
1886	3028.942
1887	3355.305
1888	3725.672
1889	4382.065
1890	4833.106
1891	5203.473
1892	5716.853
1893	6017.547
1894	6138.558
1895	7689.699
1896	8320.423
1897	9006.152
1898	9977.907
1899	10997.333
1900	13061.854
1901	14407.643
1902	15889.111
1903	16178.804
1904	18081.977
1905	18489.014
1906	21360.275
1907	23835.5
1908	27271.479
1909	26340.061
1910	25716.671
1911	27135.8
1912	31242.84
1913	34466.133
1914	34744.825
1915	36306.967
1916	36710.337
1917	38389.823
1918	43193.593
1919	47161.287
1920	38191.805
1921	41077.734
1922	40421.341
1923	41609.449
1924	44546.716
1925	43952.662
1926	43827.984
1927	45969.512
1928	44235.021
1929	46031.851
1930	46794.587
1931	42859.896
1932	39849.289
1933	39119.556
1934	43681.304
1935	45639.482
1936	44854.744
1937	49684.183
1938	55621.056
1939	54447.616
1940	57744.249
1941	59005.697
1942	58947.025
1943	51338
1944	52504.106
1945	58242.961
1946	57546.231
1947	58649.998
1948	58668.333
1949	61931.963
1950	66658.726
1951	69779.343
1952	73552.686
1953	74938.812
1954	78803.83
1955	85510.773
1956	88528.714
1957	99317.028
1958	103809.103
1959	109826.65
1960	120581.961
1961	130402.187
1962	143467.708
1963	154083.673
1964	150647.694
1965	165972.087
1966	171765.947
1967	172238.99
1968	187336.029
1969	190724.337
1970	195143.072
1971	205869.047
1972	217849.136
1973	224343.393
1974	231992.755
1975	252201.592
1976	263785.645
1977	279051.366
1978	283096.067
1979	296891.321
1980	314016.211
1981	338838.134
1982	349637.449
1983	378669.088
1984	388118.947
1985	426673.785
1986	457571.927
1987	488481.07
1988	527563.956
1989	579008.299
1990	619154.615
1991	658189.83
1992	699087.881
1993	723697.118
1994	764730.848
1995	811562.105
1996	882324.204
1997	917685.085
1998	936221.77
1999	995766.516
2000	1031853.463
2001	1041152.975
2002	1054258.833
2003	1099597.621
2004	1154320.262
2005	1222563.132
2006	1303717.509
2007	1407607.286
2008	1568379.567
2009	1738645.711
2010	1719690.988
2011	1841776.419
2012	2018503.817
2013	2034752.294
2014	2238377.137