Year	Thousands Of Short Tons
1906	568.000
1907	581.000
1908	587.000
1909	644.000
1910	724.000
1911	747.000
1912	824.000
1913	884.000
1914	889.000
1915	946.000
1916	1244.00
1917	1408.00
1918	1408.00
1919	1384.00
1920	1348.00
1921	1348.00
1922	1348.00
1923	1318.00
1924	1335.00
1925	1375.00
1926	1490.00
1927	1520.00
1928	1520.00
1929	1528.00
1930	1630.00
1931	1612.00
1932	1612.00
1933	1624.00
1934	1624.00
1935	1613.00
1936	1642.00
1937	1642.00
1938	1642.00
1939	1572.00
1940	1549.00
1941	1561.00
1942	1563.00
1943	1595.00
1944	1720.00
1945	1720.00
1946	1585.00
1947	1557.00
1948	1547.00
1949	1557.00
1950	1599.00
1951	1599.00
1952	1647.00
1953	1896.00
1954	1862.00
1955	2064.00
1956	2064.00
1957	2109.00
1958	2309.00
1959	2322.00