Monthly Million Square Feet
1919-01-01 2.49000
1919-02-01 3.93000
1919-03-01 5.56000
1919-04-01 9.11000
1919-05-01 9.32000
1919-06-01 15.7200
1919-07-01 12.1700
1919-08-01 10.7500
1919-09-01 8.92000
1919-10-01 13.9100
1919-11-01 8.54000
1919-12-01 9.48000
1920-01-01 7.32000
1920-02-01 8.67000
1920-03-01 10.1800
1920-04-01 10.8400
1920-05-01 8.40000
1920-06-01 9.50000
1920-07-01 7.33000
1920-08-01 5.00000
1920-09-01 5.87000
1920-10-01 4.93000
1920-11-01 3.61000
1920-12-01 2.34000
1921-01-01 3.26000
1921-02-01 3.28000
1921-03-01 4.38000
1921-04-01 4.80000
1921-05-01 5.59000
1921-06-01 5.41000
1921-07-01 6.06000
1921-08-01 6.94000
1921-09-01 7.16000
1921-10-01 7.99000
1921-11-01 5.16000
1921-12-01 4.58000
1922-01-01 4.81000
1922-02-01 6.26000
1922-03-01 8.95000
1922-04-01 10.4200
1922-05-01 9.84000
1922-06-01 10.2900
1922-07-01 8.78000
1922-08-01 7.79000
1922-09-01 9.07000
1922-10-01 6.87000
1922-11-01 6.43000
1922-12-01 5.71000
1923-01-01 5.87000
1923-02-01 7.03000
1923-03-01 9.89000
1923-04-01 10.4000
1923-05-01 9.78000
1923-06-01 8.39000
1923-07-01 7.09000
1923-08-01 6.25000
1923-09-01 6.97000
1923-10-01 7.58000
1923-11-01 6.92000
1923-12-01 7.43000
1924-01-01 6.65000
1924-02-01 7.96000
1924-03-01 10.0100
1924-04-01 7.95000
1924-05-01 9.24000
1924-06-01 7.83000
1924-07-01 6.28000
1924-08-01 6.85000
1924-09-01 7.23000
1924-10-01 8.55000
1924-11-01 8.96000
1924-12-01 7.21000
1925-01-01 9.67000
1925-02-01 5.38000
1925-03-01 9.86000
1925-04-01 10.1700
1925-05-01 12.1400
1925-06-01 11.7700
1925-07-01 10.7600
1925-08-01 14.3900
1925-09-01 11.2000
1925-10-01 9.51000
1925-11-01 9.63000
1925-12-01 9.57000