Monthly Million Square Feet
1919-01-01 8.60000
1919-02-01 8.50000
1919-03-01 13.1000
1919-04-01 19.0000
1919-05-01 24.5000
1919-06-01 35.0000
1919-07-01 35.4000
1919-08-01 35.5000
1919-09-01 28.0000
1919-10-01 40.6000
1919-11-01 33.6000
1919-12-01 33.6000
1920-01-01 30.3000
1920-02-01 25.2000
1920-03-01 38.6000
1920-04-01 30.3000
1920-05-01 25.0000
1920-06-01 26.0000
1920-07-01 19.4000
1920-08-01 17.2000
1920-09-01 18.1000
1920-10-01 14.1000
1920-11-01 11.5000
1920-12-01 8.20000
1921-01-01 8.70000
1921-02-01 8.30000
1921-03-01 12.3000
1921-04-01 16.5000
1921-05-01 16.6000
1921-06-01 16.9000
1921-07-01 17.6000
1921-08-01 17.1000
1921-09-01 19.9000
1921-10-01 18.4000
1921-11-01 14.8000
1921-12-01 13.0000
1922-01-01 11.9000
1922-02-01 13.4000
1922-03-01 21.4000
1922-04-01 26.1000
1922-05-01 27.9000
1922-06-01 28.9000
1922-07-01 27.2000
1922-08-01 29.2000
1922-09-01 20.4000
1922-10-01 20.8000
1922-11-01 17.9000
1922-12-01 13.5000
1923-01-01 13.7000
1923-02-01 18.4000
1923-03-01 25.3000
1923-04-01 26.0000
1923-05-01 25.7000
1923-06-01 20.4000
1923-07-01 18.1000
1923-08-01 15.5000
1923-09-01 16.4000
1923-10-01 18.9000
1923-11-01 17.9000
1923-12-01 17.3000
1924-01-01 14.2000
1924-02-01 19.6000
1924-03-01 23.7000
1924-04-01 20.7000
1924-05-01 22.8000
1924-06-01 18.8000
1924-07-01 18.2000
1924-08-01 17.0000
1924-09-01 18.9000
1924-10-01 18.8000
1924-11-01 17.0000
1924-12-01 17.0000
1925-01-01 18.1000
1925-02-01 14.2000
1925-03-01 23.8000
1925-04-01 25.9000
1925-05-01 26.0000
1925-06-01 28.6000
1925-07-01 27.0000
1925-08-01 30.7000
1925-09-01 29.6000
1925-10-01 23.3000
1925-11-01 22.0000
1925-12-01 20.3000