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