Year	Thousand Gross Tons
1843	2159.00
1844	2280.00
1845	2417.00
1846	2562.00
1847	2839.00
1848	3154.00
1849	3334.00
1850	3535.00
1851	3772.00
1852	4138.00
1853	4407.00
1854	4803.00
1855	5212.00
1856	4872.00
1857	4941.00
1858	5050.00
1859	5145.00
1860	5354.00
1861	5540.00
1862	5112.00
1863	5155.00
1864	4986.00
1865	5097.00
1866	4311.00
1867	4304.00
1868	4318.00
1869	4145.00
1870	4247.00
1871	4283.00
1872	4438.00
1873	4696.00
1874	4801.00
1875	4854.00
1876	4279.00
1877	4243.00
1878	4213.00
1879	4170.00
1880	4068.00
1881	4058.00
1882	4166.00
1883	4235.00
1884	4271.00
1885	4266.00
1886	4131.00
1887	4106.00
1888	4192.00
1889	4307.00
1890	4424.00
1891	4685.00
1892	4765.00
1893	4825.00
1894	4684.00
1895	4636.00
1896	4704.00
1897	4769.00
1898	4750.00
1899	4864.00
1900	5165.00
1901	5524.00
1902	5798.00
1903	6087.00
1904	6292.00
1905	6457.00
1906	6675.00
1907	6939.00
1908	7365.00
1909	7389.00
1910	7508.00
1911	7639.00
1912	7714.00
1913	7887.00
1914	7929.00
1915	8389.00
1916	8470.00
1917	8871.00
1918	9925.00
1919	12907.0
1920	16324.0
1921	18282.0
1922	18463.0
1923	18285.0
1924	17741.0
1925	17406.0
1926	17311.0
1927	16888.0
1928	16683.0
1929	16477.0
1930	16068.0
1931	15908.0
1932	15839.0
1933	15060.0
1934	14862.0
1935	14654.0
1936	14497.0
1937	14676.0
1938	14651.0
1939	14632.0
1940	14018.0