Month	Million Square Feet
1923-01-01	7.08000
1923-02-01	6.28000
1923-03-01	7.72000
1923-04-01	7.19000
1923-05-01	8.07000
1923-06-01	7.63000
1923-07-01	7.02000
1923-08-01	7.91000
1923-09-01	7.31000
1923-10-01	7.80000
1923-11-01	7.72000
1923-12-01	7.36000
1924-01-01	7.60000
1924-02-01	7.42000
1924-03-01	8.28000
1924-04-01	8.36000
1924-05-01	8.20000
1924-06-01	7.31000
1924-07-01	6.92000
1924-08-01	6.65000
1924-09-01	6.95000
1924-10-01	8.15000
1924-11-01	7.82000
1924-12-01	7.88000
1925-01-01	8.77000
1925-02-01	8.66000
1925-03-01	9.88000
1925-04-01	9.96000
1925-05-01	9.92000
1925-06-01	10.0000
1925-07-01	10.0400
1925-08-01	10.4400
1925-09-01	10.4100
1925-10-01	10.8400
1925-11-01	10.0000
1925-12-01	9.61000
1926-01-01	11.1800
1926-02-01	10.9800
1926-03-01	12.1000
1926-04-01	11.1700
1926-05-01	11.4900
1926-06-01	13.0500
1926-07-01	11.2000
1926-08-01	11.7500
1926-09-01	11.9100
1926-10-01	11.6500
1926-11-01	10.1100
1926-12-01	7.65000
1927-01-01	9.02000
1927-02-01	10.4100
1927-03-01	12.3800
1927-04-01	10.9600
1927-05-01	10.2200
1927-06-01	8.50000
1927-07-01	9.43000
1927-08-01	11.2900
1927-09-01	9.95000
1927-10-01	9.25000
1927-11-01	9.12000
1927-12-01	7.92000
1928-01-01	8.82000
1928-02-01	10.6900
1928-03-01	11.9500
1928-04-01	10.5600
1928-05-01	10.8800
1928-06-01	11.3500
1928-07-01	9.97000
1928-08-01	12.1600
1928-09-01	10.9000
1928-10-01	11.1400
1928-11-01	11.6500
1928-12-01	10.5800
1929-01-01	11.4300
1929-02-01	11.2900
1929-03-01	13.1400
1929-04-01	12.5500
1929-05-01	12.7800
1929-06-01	12.2800
1929-07-01	13.0600
1929-08-01	14.7200
1929-09-01	14.0100
1929-10-01	14.6200
1929-11-01	12.1300
1929-12-01	8.48000
1930-01-01	10.0200
1930-02-01	9.80000
1930-03-01	10.4200
1930-04-01	11.4300
1930-05-01	12.5700
1930-06-01	9.13000
1930-07-01	8.33000
1930-08-01	5.52000
1930-09-01	7.98000
1930-10-01	8.58000
1930-11-01	7.10000
1930-12-01	4.94000
1931-01-01	7.32000
1931-02-01	8.88000
1931-03-01	10.5900
1931-04-01	10.1700
1931-05-01	9.47000
1931-06-01	7.55000
1931-07-01	7.22000
1931-08-01	6.31000
1931-09-01	4.80000
1931-10-01	4.81000
1931-11-01	3.69000
1931-12-01	6.15000
1932-01-01	5.25000
1932-02-01	6.23000
1932-03-01	4.62000
1932-04-01	5.26000
1932-05-01	3.15000
1932-06-01	5.14000
1932-07-01	2.85000
1932-08-01	1.84000
1932-09-01	3.57000
1932-10-01	4.12000
1932-11-01	4.72000
1932-12-01	4.48000
1933-01-01	6.19000
1933-02-01	4.96000
1933-03-01	4.88000
1933-04-01	4.68000
1933-05-01	7.92000
1933-06-01	9.50000
1933-07-01	11.3500
1933-08-01	11.3300
1933-09-01	8.92000
1933-10-01	5.79000
1933-11-01	4.17000
1933-12-01	6.35000
1934-01-01	7.61000
1934-02-01	7.44000
1934-03-01	10.1200
1934-04-01	8.87000
1934-05-01	8.05000
1934-06-01	6.81000
1934-07-01	7.54000
1934-08-01	7.74000
1934-09-01	6.98000
1934-10-01	7.82000
1934-11-01	6.87000
1934-12-01	8.70000
1935-01-01	13.3600
1935-02-01	13.7200
1935-03-01	16.5300
1935-04-01	17.0000
1935-05-01	14.5800
1935-06-01	13.1600
1935-07-01	13.9100
1935-08-01	14.5300
1935-09-01	14.4000
1935-10-01	16.5900
1935-11-01	15.9100
1935-12-01	16.1100
1936-01-01	17.4700
1936-02-01	14.0100
1936-03-01	16.2400
1936-04-01	19.6700
1936-05-01	19.4100
1936-06-01	16.4200
1936-07-01	16.6100
1936-08-01	18.9200
1936-09-01	19.7700
1936-10-01	21.0700
1936-11-01	13.2300
1936-12-01	7.45000
1937-01-01	7.06000
1937-02-01	20.6800
1937-03-01	22.9700
1937-04-01	24.3100
1937-05-01	21.5200
1937-06-01	21.4800
1937-07-01	16.9900
1937-08-01	19.8200
1937-09-01	18.2500
1937-10-01	16.4500
1937-11-01	13.8600
1937-12-01	9.88000
1938-01-01	5.57000
1938-02-01	2.90000
1938-03-01	4.14000
1938-04-01	4.16000
1938-05-01	4.21000
1938-06-01	6.48000
1938-07-01	5.99000
1938-08-01	8.35000
1938-09-01	9.66000
1938-10-01	14.0000
1938-11-01	14.0200
1938-12-01	13.8100
1939-01-01	13.4000
1939-02-01	11.1600
1939-03-01	12.9400
1939-04-01	7.98000
1939-05-01	8.82000
1939-06-01	10.2000
1939-07-01	6.82000
1939-08-01	11.4700
1939-09-01	15.0000
1939-10-01	20.1600
1939-11-01	17.3600
1939-12-01	20.2800
1940-01-01	17.2600
1940-02-01	13.1800
1940-03-01	14.3000
1940-04-01	12.3700
1940-05-01	11.7200
1940-06-01	9.78000
1940-07-01	8.52000
1940-08-01	12.5300
1940-09-01	14.0900
1940-10-01	17.0700
1940-11-01	16.0600
1940-12-01	17.4900
1941-01-01	19.3500
1941-02-01	15.6600
1941-03-01	18.2700
1941-04-01	18.3400
1941-05-01	18.3900
1941-06-01	18.5300
1941-07-01	12.4600
1941-08-01	14.1300
1941-09-01	14.9100
1941-10-01	15.7700
1941-11-01	14.2800
1941-12-01	10.3100
1942-01-01	9.14000
1942-02-01	5.60000
1942-03-01	5.56000
1942-04-01	5.57000
1942-05-01	4.31000
1942-06-01	4.73000
1942-07-01	4.19000
1942-08-01	3.86000
1942-09-01	4.74000
1942-10-01	4.92000
1942-11-01	4.61000
1942-12-01	5.00000
1943-01-01	4.91000
1943-02-01	4.78000
1943-03-01	5.24000