Monthly Millions Of Man-Hours
1921-07-01 89.7000
1921-08-01 98.8000
1921-09-01 97.0000
1921-10-01 105.400
1921-11-01 102.200
1921-12-01 98.0000
1922-01-01 90.5000
1922-02-01 83.4000
1922-03-01 97.6000
1922-04-01 89.3000
1922-05-01 95.2000
1922-06-01 98.7000
1922-07-01 52.6000
1922-08-01 82.7000
1922-09-01 104.600
1922-10-01 125.700
1922-11-01 125.200
1922-12-01 126.500
1923-01-01 129.700
1923-02-01 115.800
1923-03-01 131.900
1923-04-01 122.500
1923-05-01 128.400
1923-06-01 126.700
1923-07-01 126.500
1923-08-01 130.100
1923-09-01 119.100
1923-10-01 128.800
1923-11-01 116.700
1923-12-01 108.300
1924-01-01 113.200
1924-02-01 106.000
1924-03-01 114.300
1924-04-01 109.400
1924-05-01 107.500
1924-06-01 99.4000
1924-07-01 102.500
1924-08-01 103.500
1924-09-01 104.700
1924-10-01 115.100
1924-11-01 105.000
1924-12-01 109.300
1925-01-01 112.100
1925-02-01 100.900
1925-03-01 110.900
1925-04-01 105.900
1925-05-01 103.900
1925-06-01 104.200
1925-07-01 105.400
1925-08-01 103.600
1925-09-01 101.200
1925-10-01 109.200
1925-11-01 102.100
1925-12-01 106.300
1926-01-01 105.800
1926-02-01 97.7000
1926-03-01 111.600
1926-04-01 106.100
1926-05-01 104.500
1926-06-01 104.700
1926-07-01 105.300
1926-08-01 106.300
1926-09-01 103.300
1926-10-01 107.800
1926-11-01 103.800
1926-12-01 105.400
1927-01-01 103.800
1927-02-01 94.4000
1927-03-01 106.400
1927-04-01 99.3000
1927-05-01 99.2000
1927-06-01 100.000
1927-07-01 96.8000
1927-08-01 99.8000
1927-09-01 94.7000
1927-10-01 99.1000
1927-11-01 94.3000
1927-12-01 93.7000
1928-01-01 94.0000
1928-02-01 88.9000
1928-03-01 96.9000
1928-04-01 90.4000
1928-05-01 94.4000
1928-06-01 92.2000
1928-07-01 90.7000
1928-08-01 94.7000
1928-09-01 88.0000
1928-10-01 97.4000
1928-11-01 91.5000
1928-12-01 89.8000
1929-01-01 94.2000
1929-02-01 85.8000
1929-03-01 95.7000
1929-04-01 93.7000
1929-05-01 94.7000
1929-06-01 90.3000
1929-07-01 93.5000
1929-08-01 94.5000
1929-09-01 88.7000
1929-10-01 97.2000
1929-11-01 89.9000
1929-12-01 87.5000
1930-01-01 89.7000
1930-02-01 79.8000
1930-03-01 86.4000
1930-04-01 83.4000
1930-05-01 82.9000
1930-06-01 76.5000
1930-07-01 74.7000
1930-08-01 73.5000
1930-09-01 70.9000
1930-10-01 72.8000
1930-11-01 66.5000
1930-12-01 68.7000
1931-01-01 68.9000
1931-02-01 61.9000
1931-03-01 67.9000
1931-04-01 65.8000
1931-05-01 63.6000
1931-06-01 61.3000
1931-07-01 61.2000
1931-08-01 58.5000
1931-09-01 55.5000
1931-10-01 56.3000
1931-11-01 50.8000
1931-12-01 51.7000
1932-01-01 50.6000
1932-02-01 48.8000
1932-03-01 53.2000
1932-04-01 49.1000
1932-05-01 47.6000
1932-06-01 44.3000
1932-07-01 41.5000
1932-08-01 41.9000
1932-09-01 40.8000
1932-10-01 44.3000
1932-11-01 44.1000
1932-12-01 43.6000
1933-01-01 42.7000
1933-02-01 38.1000
1933-03-01 40.7000
1933-04-01 38.6000
1933-05-01 41.2000
1933-06-01 41.8000
1933-07-01 44.7000
1933-08-01 49.4000
1933-09-01 47.2000
1933-10-01 49.5000
1933-11-01 46.4000
1933-12-01 44.5000
1934-01-01 47.3000
1934-02-01 44.0000
1934-03-01 51.7000
1934-04-01 50.3000
1934-05-01 52.9000
1934-06-01 51.4000
1934-07-01 49.8000
1934-08-01 49.8000
1934-09-01 45.6000
1934-10-01 49.4000
1934-11-01 45.7000
1934-12-01 45.5000
1935-01-01 48.5000
1935-02-01 44.8000
1935-03-01 49.8000
1935-04-01 47.9000
1935-05-01 49.2000
1935-06-01 46.7000
1935-07-01 48.3000
1935-08-01 47.9000
1935-09-01 45.8000
1935-10-01 52.0000
1935-11-01 48.7000
1935-12-01 49.9000
1936-01-01 53.2000
1936-02-01 52.6000
1936-03-01 55.8000
1936-04-01 54.7000
1936-05-01 54.9000
1936-06-01 55.4000
1936-07-01 56.9000
1936-08-01 56.4000
1936-09-01 56.8000
1936-10-01 61.0000
1936-11-01 57.2000
1936-12-01 61.1000
1937-01-01 59.4000
1937-02-01 55.8000
1937-03-01 65.4000
1937-04-01 63.6000
1937-05-01 62.9000
1937-06-01 64.0000
1937-07-01 63.1000
1937-08-01 61.2000
1937-09-01 57.5000
1937-10-01 58.2000
1937-11-01 53.7000
1937-12-01 50.7000
1938-01-01 46.8000
1938-02-01 41.8000
1938-03-01 46.6000
1938-04-01 42.4000
1938-05-01 41.0000
1938-06-01 41.2000
1938-07-01 41.9000
1938-08-01 45.2000
1938-09-01 44.7000
1938-10-01 47.4000
1938-11-01 47.0000
1938-12-01 48.2000
1939-01-01 48.8000
1939-02-01 45.2000
1939-03-01 52.4000
1939-04-01 46.6000
1939-05-01 47.8000
1939-06-01 49.6000
1939-07-01 48.8000
1939-08-01 51.5000
1939-09-01 51.1000
1939-10-01 58.5000
1939-11-01 56.7000
1939-12-01 54.6000
1940-01-01 56.2000
1940-02-01 51.4000
1940-03-01 54.2000
1940-04-01 52.7000
1940-05-01 53.3000
1940-06-01 52.3000
1940-07-01 56.2000
1940-08-01 57.4000
1940-09-01 54.4000
1940-10-01 59.8000
1940-11-01 55.3000
1940-12-01 56.0000
1941-01-01 58.6000
1941-02-01 53.6000
1941-03-01 61.2000
1941-04-01 61.8000
1941-05-01 64.8000
1941-06-01 64.4000
1941-07-01 68.0000
1941-08-01 68.4000
1941-09-01 67.3000
1941-10-01 72.1000
1941-11-01 66.6000
1941-12-01 70.2000
1942-01-01 71.0000
1942-02-01 64.2000
1942-03-01 72.8000
1942-04-01 72.5000
1942-05-01 72.9000
1942-06-01 74.7000
1942-07-01 76.7000
1942-08-01 76.8000
1942-09-01 74.6000
1942-10-01 79.5000
1942-11-01 74.5000