Year	Millions Of Metric Tons
1881	7.57000
1882	8.31000
1883	8.34000
1884	7.08000
1885	5.48000
1886	6.89000
1887	5.12000
1888	5.46000
1889	7.14000
1890	6.48000
1891	6.53000
1892	6.22000
1893	6.05000
1894	7.64000
1895	6.38000
1896	8.48000
1897	7.76000
1898	6.59000
1899	7.23000
1900	8.59000
1901	9.02000
1902	6.28000
1903	6.21000
1904	4.47000
1905	7.66000
1906	5.41000
1907	5.24000
1908	5.80000
1909	6.25000
1910	5.83000
1911	4.23000
1912	7.22000
1913	5.94000
1914	3.75000
1915	1.15000
1916	1.99000
1917	1.97000
1918	1.14000
1919	1.28000
1920	2.46000
1921	2.06000
1922	3.29000
1923	3.79000
1924	5.78000
1925	5.37000
1926	4.86000
1927	6.00000
1928	5.81000
1929	6.84000
1930	9.44000
1931	6.20000
1932	7.59000
1933	7.46000
1934	8.79000