Year	Thousands Of Metric Tons
1870	170.000
1871	251.000
1872	286.000
1873	310.000
1874	362.000
1875	347.000
1876	366.000
1877	411.000
1878	489.000
1879	501.000
1880	783.000
1881	898.000
1882	1075.00
1883	1052.00
1884	1142.00
1885	1203.00
1886	1336.00
1887	1738.00
1888	1863.00
1889	2096.00
1890	2232.00
1891	2565.00
1892	2756.00
1893	3163.00
1894	3738.00
1895	4025.00
1896	4834.00
1897	5030.00
1898	5449.00
1899	6038.00
1900	6646.00
1901	6394.00
1902	7781.00
1903	8802.00
1904	8930.00
1905	10067.0
1906	11308.0
1907	12064.0
1908	11186.0
1909	12050.0
1910	13699.0
1911	15019.0
1912	17302.0
1913	18935.0
1914	14946.0
1915	13258.0
1916	16182.0