Month Thousand Units Started 1939-01-01 29.7000 1939-02-01 29.6000 1939-03-01 41.8000 1939-04-01 41.9000 1939-05-01 44.2000 1939-06-01 41.2000 1939-07-01 37.9000 1939-08-01 42.8000 1939-09-01 39.2000 1939-10-01 41.4000 1939-11-01 38.0000 1939-12-01 30.7000 1940-01-01 24.1000 1940-02-01 30.9000 1940-03-01 43.7000 1940-04-01 52.4000 1940-05-01 53.0000 1940-06-01 47.8000 1940-07-01 52.4000 1940-08-01 51.2000 1940-09-01 50.4000 1940-10-01 52.0000 1940-11-01 38.2000 1940-12-01 33.5000 1941-01-01 36.5000 1941-02-01 35.2000 1941-03-01 51.2000 1941-04-01 61.6000 1941-05-01 65.1000 1941-06-01 64.1000 1941-07-01 68.0000 1941-08-01 61.2000 1941-09-01 53.8000 1941-10-01 51.0000 1941-11-01 41.8000 1941-12-01 30.0000 1942-01-01 27.8000 1942-02-01 35.5000 1942-03-01 47.7000 1942-04-01 42.0000 1942-05-01 20.4000 1942-06-01 18.7000 1942-07-01 20.7000 1942-08-01 21.6000 1942-09-01 21.6000 1942-10-01 18.1000 1942-11-01 14.5000 1942-12-01 12.6000 1943-01-01 9.30000 1943-02-01 9.80000 1943-03-01 14.9000 1943-04-01 15.2000 1943-05-01 18.9000 1943-06-01 17.6000 1943-07-01 16.7000 1943-08-01 19.6000 1943-09-01 16.3000 1943-10-01 18.0000 1943-11-01 14.4000 1943-12-01 13.0000 1944-01-01 12.2000 1944-02-01 11.7000 1944-03-01 13.4000 1944-04-01 12.8000 1944-05-01 14.7000 1944-06-01 15.1000 1944-07-01 12.4000 1944-08-01 11.1000 1944-09-01 9.40000 1944-10-01 9.70000 1944-11-01 9.00000 1944-12-01 7.20000 1945-01-01 7.00000 1945-02-01 7.50000 1945-03-01 10.6000 1945-04-01 12.4000 1945-05-01 14.6000 1945-06-01 18.3000 1945-07-01 16.6000 1945-08-01 17.0000 1945-09-01 20.1000 1945-10-01 25.6000 1945-11-01 29.3000 1945-12-01 29.1000