Monthly Million Square Feet
1919-01-01 13.1000
1919-02-01 15.1000
1919-03-01 25.7000
1919-04-01 39.2000
1919-05-01 51.0000
1919-06-01 65.5000
1919-07-01 65.7000
1919-08-01 62.2000
1919-09-01 50.0000
1919-10-01 68.5000
1919-11-01 51.8000
1919-12-01 49.4000
1920-01-01 41.9000
1920-02-01 34.7000
1920-03-01 54.6000
1920-04-01 51.2000
1920-05-01 42.1000
1920-06-01 36.9000
1920-07-01 28.0000
1920-08-01 28.0000
1920-09-01 26.3000
1920-10-01 25.3000
1920-11-01 19.4000
1920-12-01 13.7000
1921-01-01 15.4000
1921-02-01 16.9000
1921-03-01 26.7000
1921-04-01 34.5000
1921-05-01 35.4000
1921-06-01 35.1000
1921-07-01 31.6000
1921-08-01 35.1000
1921-09-01 41.4000
1921-10-01 40.4000
1921-11-01 37.5000
1921-12-01 34.9000
1922-01-01 30.0000
1922-02-01 29.9000
1922-03-01 51.8000
1922-04-01 57.7000
1922-05-01 59.4000
1922-06-01 60.4000
1922-07-01 51.6000
1922-08-01 52.9000
1922-09-01 43.7000
1922-10-01 46.6000
1922-11-01 46.6000
1922-12-01 39.5000
1923-01-01 38.3000
1923-02-01 41.1000
1923-03-01 64.8000
1923-04-01 65.2000
1923-05-01 60.0000
1923-06-01 45.6000
1923-07-01 41.8000
1923-08-01 39.6000
1923-09-01 38.9000
1923-10-01 53.9000
1923-11-01 51.0000
1923-12-01 47.8000
1924-01-01 48.8000
1924-02-01 47.6000
1924-03-01 67.7000
1924-04-01 62.9000
1924-05-01 57.2000
1924-06-01 47.1000
1924-07-01 39.1000
1924-08-01 41.6000
1924-09-01 43.2000
1924-10-01 47.2000
1924-11-01 48.4000
1924-12-01 46.7000
1925-01-01 41.6000
1925-02-01 37.9000
1925-03-01 64.1000
1925-04-01 72.1000
1925-05-01 68.2000
1925-06-01 66.1000
1925-07-01 67.4000
1925-08-01 77.0000
1925-09-01 67.8000
1925-10-01 67.3000
1925-11-01 66.6000
1925-12-01 63.5000