Month Locomotives: Seasonally Adjusted By Nber 1937-01-01 1558.00 1937-02-01 1703.00 1937-03-01 1693.00 1937-04-01 1664.00 1937-05-01 1647.00 1937-06-01 1623.00 1937-07-01 1621.00 1937-08-01 1639.00 1937-09-01 1631.00 1937-10-01 1624.00 1937-11-01 1662.00 1937-12-01 1660.00 1938-01-01 1688.00 1938-02-01 1741.00 1938-03-01 1738.00 1938-04-01 1734.00 1938-05-01 1785.00 1938-06-01 1868.00 1938-07-01 1889.00 1938-08-01 1920.00 1938-09-01 1978.00 1938-10-01 1958.00 1938-11-01 1965.00 1938-12-01 1932.00 1939-01-01 1889.00 1939-02-01 1905.00 1939-03-01 1888.00 1939-04-01 1861.00 1939-05-01 1870.00 1939-06-01 1845.00 1939-07-01 1823.00 1939-08-01 1829.00 1939-09-01 1806.00 1939-10-01 1805.00 1939-11-01 1767.00 1939-12-01 1711.00 1940-01-01 1675.00 1940-02-01 1680.00 1940-03-01 1658.00 1940-04-01 1632.00 1940-05-01 1648.00 1940-06-01 1615.00 1940-07-01 1559.00 1940-08-01 1493.00 1940-09-01 1523.00 1940-10-01 1580.00 1940-11-01 1562.00 1940-12-01 1577.00 1941-01-01 1558.00 1941-02-01 1527.00 1941-03-01 1530.00 1941-04-01 1519.00 1941-05-01 1458.00 1941-06-01 1409.00 1941-07-01 1376.00 1941-08-01 1299.00 1941-09-01 1245.00 1941-10-01 1196.00 1941-11-01 1146.00 1941-12-01 1134.00 1942-01-01 1105.00 1942-02-01 1059.00 1942-03-01 1030.00 1942-04-01 1022.00 1942-05-01 975.000 1942-06-01 952.000 1942-07-01 940.000 1942-08-01 949.000 1942-09-01 945.000 1942-10-01 854.000 1942-11-01 813.000 1942-12-01 839.000 1943-01-01 816.000 1943-02-01 760.000 1943-03-01 745.000 1943-04-01 734.000 1943-05-01 743.000 1943-06-01 827.000 1943-07-01 845.000