Month	Million Square Feet
1923-01-01	6.80000
1923-02-01	8.18000
1923-03-01	11.2700
1923-04-01	12.3100
1923-05-01	11.6700
1923-06-01	9.55000
1923-07-01	8.45000
1923-08-01	8.50000
1923-09-01	8.50000
1923-10-01	8.79000
1923-11-01	7.71000
1923-12-01	8.56000
1924-01-01	7.78000
1924-02-01	9.42000
1924-03-01	11.4700
1924-04-01	9.61000
1924-05-01	11.2300
1924-06-01	9.31000
1924-07-01	7.84000
1924-08-01	8.36000
1924-09-01	8.75000
1924-10-01	9.66000
1924-11-01	10.0400
1924-12-01	8.42000
1925-01-01	10.9200
1925-02-01	7.47000
1925-03-01	11.7700
1925-04-01	12.2600
1925-05-01	14.1800
1925-06-01	13.7100
1925-07-01	13.1500
1925-08-01	17.2900
1925-09-01	13.2600
1925-10-01	12.2300
1925-11-01	11.4200
1925-12-01	13.3900
1926-01-01	11.1900
1926-02-01	8.76000
1926-03-01	15.8600
1926-04-01	14.9900
1926-05-01	12.0500
1926-06-01	12.0100
1926-07-01	10.7000
1926-08-01	12.4400
1926-09-01	14.1700
1926-10-01	11.1400
1926-11-01	9.62000
1926-12-01	9.86000
1927-01-01	11.0400
1927-02-01	8.80000
1927-03-01	14.7200
1927-04-01	12.2600
1927-05-01	12.5000
1927-06-01	12.4000
1927-07-01	12.4900
1927-08-01	10.8800
1927-09-01	9.72000
1927-10-01	11.8300
1927-11-01	7.45000
1927-12-01	9.08000
1928-01-01	10.8000
1928-02-01	9.09000
1928-03-01	10.8300
1928-04-01	13.8900
1928-05-01	14.3100
1928-06-01	13.9800
1928-07-01	16.8400
1928-08-01	11.9700
1928-09-01	11.4400
1928-10-01	13.2000
1928-11-01	13.0400
1928-12-01	11.0000