Month	Millions Of Passenger-Miles
1931-07-01	13.5000
1931-08-01	14.3100
1931-09-01	13.1800
1931-10-01	11.1200
1931-11-01	7.46000
1931-12-01	6.02000
1932-01-01	6.08000
1932-02-01	5.79000
1932-03-01	8.14000
1932-04-01	10.3100
1932-05-01	11.7000
1932-06-01	12.5100
1932-07-01	14.7700
1932-08-01	15.9400
1932-09-01	14.5900
1932-10-01	11.1900
1932-11-01	9.10000
1932-12-01	6.91000
1933-01-01	7.86000
1933-02-01	7.65000
1933-03-01	8.09000
1933-04-01	9.38000
1933-05-01	12.6500
1933-06-01	18.8600
1933-07-01	21.4200
1933-08-01	22.8000
1933-09-01	21.5200
1933-10-01	19.3600
1933-11-01	13.4900
1933-12-01	10.4100
1934-01-01	10.7800
1934-02-01	10.4800
1934-03-01	8.72000
1934-04-01	12.3700
1934-05-01	15.0400
1934-06-01	17.9000
1934-07-01	18.1500
1934-08-01	21.4900
1934-09-01	19.0400
1934-10-01	21.0000
1934-11-01	17.3000
1934-12-01	15.5900
1935-01-01	13.4100
1935-02-01	16.2300
1935-03-01	24.7500
1935-04-01	26.7500
1935-05-01	27.0700
1935-06-01	31.2300
1935-07-01	34.0400
1935-08-01	35.7300
1935-09-01	32.0200
1935-10-01	28.7900
1935-11-01	20.8400
1935-12-01	23.0500
1936-01-01	18.9800
1936-02-01	18.1200
1936-03-01	31.7300
1936-04-01	30.3300
1936-05-01	40.0900
1936-06-01	40.2500
1936-07-01	44.3600
1936-08-01	43.1100
1936-09-01	43.5100
1936-10-01	44.4100
1936-11-01	42.8900
1936-12-01	37.9500
1937-01-01	21.3800
1937-02-01	26.1100
1937-03-01	34.5800
1937-04-01	33.1400
1937-05-01	42.0200
1937-06-01	47.2900
1937-07-01	50.8000
1937-08-01	51.9400
1937-09-01	54.2300
1937-10-01	49.1900
1937-11-01	34.7100
1937-12-01	31.2200
1938-01-01	32.4600
1938-02-01	34.3900
1938-03-01	43.5500
1938-04-01	44.4100
1938-05-01	48.8100
1938-06-01	47.5100
1938-07-01	50.8600
1938-08-01	56.4000
1938-09-01	54.8100
1938-10-01	56.8300
1938-11-01	46.0900
1938-12-01	41.5900
1939-01-01	38.4000
1939-02-01	35.0000
1939-03-01	49.4500
1939-04-01	53.4800
1939-05-01	63.3600
1939-06-01	70.2000
1939-07-01	72.9200
1939-08-01	75.1500
1939-09-01	75.8000
1939-10-01	77.4700
1939-11-01	67.0300
1939-12-01	71.5300
1940-01-01	61.3600
1940-02-01	58.9400
1940-03-01	80.6900
1940-04-01	88.0600
1940-05-01	100.040
1940-06-01	110.840
1940-07-01	112.380
1940-08-01	121.600
1940-09-01	118.530
1940-10-01	125.920
1940-11-01	90.7000
1940-12-01	78.3900
1941-01-01	78.3400
1941-02-01	84.6400
1941-03-01	96.6600
1941-04-01	114.750
1941-05-01	133.980
1941-06-01	141.910
1941-07-01	147.420
1941-08-01	158.070
1941-09-01	158.150
1941-10-01	150.920
1941-11-01	115.830
1941-12-01	111.080