Month Thousand Units 1940-01-01 18.7000 1940-02-01 23.7000 1940-03-01 36.2000 1940-04-01 44.1000 1940-05-01 45.5000 1940-06-01 42.1000 1940-07-01 45.4000 1940-08-01 44.8000 1940-09-01 43.7000 1940-10-01 43.9000 1940-11-01 32.5000 1940-12-01 27.0000 1941-01-01 28.5000 1941-02-01 29.1000 1941-03-01 43.0000 1941-04-01 53.0000 1941-05-01 55.5000 1941-06-01 56.1000 1941-07-01 58.3000 1941-08-01 55.3000 1941-09-01 48.0000 1941-10-01 45.0000 1941-11-01 34.6000 1941-12-01 26.8000 1942-01-01 24.4000 1942-02-01 29.1000 1942-03-01 41.2000 1942-04-01 34.1000 1942-05-01 17.9000 1942-06-01 15.7000 1942-07-01 17.0000 1942-08-01 18.2000 1942-09-01 18.0000 1942-10-01 15.2000 1942-11-01 11.6000 1942-12-01 9.90000 1943-01-01 6.80000 1943-02-01 8.10000 1943-03-01 11.9000 1943-04-01 11.4000 1943-05-01 14.3000 1943-06-01 13.1000 1943-07-01 12.6000 1943-08-01 13.2000 1943-09-01 11.6000 1943-10-01 12.2000 1943-11-01 11.2000 1943-12-01 9.90000 1944-01-01 10.1000 1944-02-01 9.80000 1944-03-01 11.2000 1944-04-01 10.3000 1944-05-01 11.6000 1944-06-01 12.3000 1944-07-01 10.7000 1944-08-01 9.10000 1944-09-01 8.00000 1944-10-01 8.00000 1944-11-01 7.40000 1944-12-01 6.10000 1945-01-01 6.10000 1945-02-01 6.40000 1945-03-01 9.00000 1945-04-01 10.1000 1945-05-01 12.9000 1945-06-01 16.7000 1945-07-01 14.5000 1945-08-01 15.4000 1945-09-01 18.2000 1945-10-01 23.1000 1945-11-01 26.4000 1945-12-01 25.8000 1946-01-01 32.4000 1946-02-01 37.5000 1946-03-01 54.2000 1946-04-01 59.9000 1946-05-01 58.8000 1946-06-01 55.3000 1946-07-01 55.6000 1946-08-01 55.1000 1946-09-01 51.9000 1946-10-01 50.7000 1946-11-01 43.6000 1946-12-01 35.0000 1947-01-01 35.0000 1947-02-01 39.1000 1947-03-01 49.9000 1947-04-01 60.5000 1947-05-01 65.8000 1947-06-01 67.3000 1947-07-01 70.5000 1947-08-01 74.1000 1947-09-01 80.7000 1947-10-01 80.1000 1947-11-01 67.3000 1947-12-01 49.9000 1948-01-01 42.1000 1948-02-01 38.0000 1948-03-01 62.4000 1948-04-01 78.4000 1948-05-01 83.7000 1948-06-01 81.4000 1948-07-01 78.3000 1948-08-01 74.2000 1948-09-01 69.2000 1948-10-01 62.0000 1948-11-01 52.5000 1948-12-01 41.0000 1949-01-01 37.1000 1949-02-01 39.7000 1949-03-01 54.4000 1949-04-01 69.5000 1949-05-01 71.5000 1949-06-01 71.9000 1949-07-01 74.1000 1949-08-01 76.5000 1949-09-01 77.5000 1949-10-01 81.9000 1949-11-01 77.3000 1949-12-01 61.0000 1950-01-01 62.3000 1950-02-01 68.2000 1950-03-01 95.3000 1950-04-01 110.200 1950-05-01 124.600 1950-06-01 124.900 1950-07-01 122.300 1950-08-01 117.300 1950-09-01 100.800 1950-10-01 87.7000 1950-11-01 71.4000 1950-12-01 65.7000 1951-01-01 70.8000 1951-02-01 67.0000 1951-03-01 78.2000 1951-04-01 82.8000 1951-05-01 85.6000 1951-06-01 78.7000 1951-07-01 75.5000 1951-08-01 77.5000 1951-09-01 81.5000 1951-10-01 79.5000 1951-11-01 63.8000 1951-12-01 51.3000 1952-01-01 53.8000 1952-02-01 65.4000 1952-03-01 78.9000 1952-04-01 85.2000 1952-05-01 89.5000 1952-06-01 86.5000 1952-07-01 90.3000 1952-08-01 85.5000 1952-09-01 86.5000 1952-10-01 87.2000 1952-11-01 72.0000 1952-12-01 58.3000 1953-01-01 58.2000 1953-02-01 63.8000 1953-03-01 83.7000 1953-04-01 94.2000 1953-05-01 93.4000 1953-06-01 89.6000 1953-07-01 84.4000 1953-08-01 81.5000 1953-09-01 80.9000 1953-10-01 79.3000 1953-11-01 70.2000 1953-12-01 53.6000 1954-01-01 53.1000 1954-02-01 64.5000 1954-03-01 83.1000 1954-04-01 96.0000 1954-05-01 97.6000 1954-06-01 101.900 1954-07-01 101.600 1954-08-01 103.000 1954-09-01 103.900 1954-10-01 100.300 1954-11-01 92.8000 1954-12-01 79.5000 1955-01-01 78.3000 1955-02-01 78.9000 1955-03-01 100.000 1955-04-01 119.900 1955-05-01 122.100 1955-06-01 120.500 1955-07-01 113.400 1955-08-01 111.500 1955-09-01 104.100 1955-10-01 95.1000 1955-11-01 80.2000 1955-12-01 66.0000 1956-01-01 66.4000 1956-02-01 68.7000 1956-03-01 83.7000 1956-04-01 99.6000 1956-05-01 100.700 1956-06-01 95.4000 1956-07-01 90.0000 1956-08-01 93.0000 1956-09-01 81.2000 1956-10-01 81.2000 1956-11-01 67.5000 1956-12-01 53.3000 1957-01-01 50.1000 1957-02-01 52.8000 1957-03-01 68.0000 1957-04-01 78.8000 1957-05-01 81.6000 1957-06-01 80.3000 1957-07-01 81.1000 1957-08-01 81.7000 1957-09-01 76.9000 1957-10-01 73.8000 1957-11-01 64.2000 1957-12-01 50.9000 1958-01-01 50.2000 1958-02-01 49.0000 1958-03-01 62.4000 1958-04-01 76.6000 1958-05-01 83.6000 1958-06-01 84.7000 1958-07-01 88.1000 1958-08-01 95.7000 1958-09-01 93.2000 1958-10-01 94.1000 1958-11-01 84.8000 1958-12-01 70.1000 1959-01-01 63.9000 1959-02-01 74.8000 1959-03-01 93.4000 1959-04-01 108.500 1959-05-01 107.300 1959-06-01 107.100 1959-07-01 105.100 1959-08-01 104.000 1959-09-01 94.9000 1959-10-01 82.8000 1959-11-01 72.5000 1959-12-01 64.2000