Year	Number Of Locomotives
1911	58071.0
1912	59010.0
1913	61172.0
1914	62533.0
1915	61882.0
1916	61013.0
1917	61548.0
1918	63546.0
1919	64633.0
1920	64382.0
1921	64585.0
1922	64140.0
1923	64948.0
1924	65006.0
1925	63612.0
1926	62342.0
1927	60895.0
1928	58845.0
1929	56936.0
1930	55875.0
1931	54385.0
1932	52492.0
1933	50064.0
1934	47436.0
1935	45614.0
1936	44162.0
1937	43624.0
1938	42637.0
1939	41117.0
1940	40041.0
1941	39624.0
1942	39491.0
1943	39725.0
1944	39681.0
1945	38853.0