Monthly Million Square Feet
1919-01-01 1.34000
1919-02-01 1.71000
1919-03-01 1.89000
1919-04-01 2.75000
1919-05-01 3.60000
1919-06-01 6.12000
1919-07-01 7.04000
1919-08-01 5.71000
1919-09-01 4.52000
1919-10-01 5.38000
1919-11-01 3.03000
1919-12-01 4.21000
1920-01-01 3.53000
1920-02-01 2.47000
1920-03-01 5.18000
1920-04-01 5.42000
1920-05-01 5.13000
1920-06-01 5.56000
1920-07-01 5.04000
1920-08-01 4.64000
1920-09-01 3.50000
1920-10-01 3.75000
1920-11-01 2.27000
1920-12-01 2.06000
1921-01-01 2.92000
1921-02-01 2.69000
1921-03-01 4.99000
1921-04-01 6.57000
1921-05-01 6.86000
1921-06-01 7.54000
1921-07-01 8.54000
1921-08-01 7.44000
1921-09-01 9.76000
1921-10-01 6.14000
1921-11-01 5.24000
1921-12-01 5.56000
1922-01-01 4.16000
1922-02-01 4.79000
1922-03-01 8.22000
1922-04-01 10.6100
1922-05-01 11.7800
1922-06-01 14.2200
1922-07-01 11.6500
1922-08-01 10.1200
1922-09-01 6.83000
1922-10-01 6.66000
1922-11-01 5.22000
1922-12-01 3.65000
1923-01-01 3.96000
1923-02-01 6.50000
1923-03-01 8.01000
1923-04-01 9.59000
1923-05-01 6.96000
1923-06-01 7.67000
1923-07-01 7.22000
1923-08-01 5.88000
1923-09-01 5.16000
1923-10-01 7.43000
1923-11-01 5.83000
1923-12-01 5.19000
1924-01-01 4.71000
1924-02-01 7.79000
1924-03-01 9.37000
1924-04-01 8.44000
1924-05-01 9.73000
1924-06-01 7.77000
1924-07-01 9.47000
1924-08-01 7.22000
1924-09-01 8.05000
1924-10-01 6.32000
1924-11-01 4.51000
1924-12-01 5.01000
1925-01-01 4.20000
1925-02-01 6.29000
1925-03-01 8.83000
1925-04-01 8.99000
1925-05-01 8.51000
1925-06-01 12.5400
1925-07-01 11.1000
1925-08-01 10.7600
1925-09-01 9.67000
1925-10-01 6.47000
1925-11-01 5.42000
1925-12-01 5.78000