Year	Short Tons
1918	4.42000
1919	4.01000
1920	4.66000
1921	4.84000
1922	5.10000
1923	4.34000
1924	4.09000
1925	5.09000
1926	3.79000
1927	4.46000
1928	3.68000
1929	4.74000
1930	4.31000
1931	3.30000
1932	4.28000
1933	3.86000
1934	3.87000
1935	3.60000
1936	4.74000
1937	4.27000
1938	4.44000
1939	5.58000
1940	5.56000
1941	6.09000
1942	5.27000
1943	4.79000
1944	5.45000
1945	4.92000
1946	5.94000
1947	6.34000
1948	7.27000
1949	7.30000
1950	7.60000
1951	10.0800