Quarter	Number Of Locomotives
1941-01-01	440.000
1941-04-01	477.000
1941-07-01	286.000
1941-10-01	258.000
1942-01-01	559.000
1942-04-01	368.000
1942-07-01	197.000
1942-10-01	182.000
1943-01-01	314.000
1943-04-01	355.000
1943-07-01	288.000
1943-10-01	126.000
1944-01-01	187.000
1944-04-01	310.000
1944-07-01	181.000
1944-10-01	83.0000
1945-01-01	258.000
1945-04-01	231.000
1945-07-01	174.000
1945-10-01	129.000
1946-01-01	281.000
1946-04-01	200.000
1946-07-01	211.000
1946-10-01	263.000
1947-01-01	398.000
1947-04-01	461.000
1947-07-01	322.000
1947-10-01	1036.00
1948-01-01	588.000
1948-04-01	619.000
1948-07-01	360.000
1948-10-01	700.000
1949-01-01	343.000
1949-04-01	393.000
1949-07-01	319.000
1949-10-01	486.000
1950-01-01	851.000
1950-04-01	646.000
1950-07-01	1506.00
1950-10-01	1019.00
1951-01-01	1042.00
1951-04-01	949.000
1951-07-01	989.000
1951-10-01	765.000
1952-01-01	546.000
1952-04-01	374.000
1952-07-01	430.000
1952-10-01	432.000
1953-01-01	504.000
1953-04-01	337.000
1953-07-01	363.000
1953-10-01	543.000
1954-01-01	181.000
1954-04-01	96.0000
1954-07-01	204.000
1954-10-01	527.000
1955-01-01	217.000
1955-04-01	378.000
1955-07-01	543.000
1955-10-01	294.000
1956-01-01	364.000
1956-04-01	410.000
1956-07-01	313.000
1956-10-01	188.000
1957-01-01	311.000
1957-04-01	101.000
1957-07-01	183.000
1957-10-01	311.000
1958-01-01	23.0000
1958-04-01	4.00000
1958-07-01	299.000
1958-10-01	250.000
1959-01-01	171.000
1959-04-01	96.0000
1959-07-01	44.0000
1959-10-01	165.000
1960-01-01	192.000
1960-04-01	38.0000
1960-07-01	1.00000
1960-10-01	36.0000
1961-01-01	13.0000
1961-04-01	120.000
1961-07-01	61.0000
1961-10-01	90.0000