Month	Passenger-Miles
1935-01-01	10.5000
1935-02-01	10.9000
1935-03-01	10.1000
1935-04-01	10.5000
1935-05-01	10.4000
1935-06-01	11.8000
1935-07-01	11.8000
1935-08-01	12.5000
1935-09-01	11.9000
1935-10-01	10.8000
1935-11-01	10.9000
1935-12-01	12.1000
1936-01-01	12.3000
1936-02-01	12.8000
1936-03-01	11.9000
1936-04-01	12.3000
1936-05-01	12.3000
1936-06-01	14.6000
1936-07-01	15.2000
1936-08-01	15.6000
1936-09-01	14.4000
1936-10-01	13.4000
1936-11-01	13.4000
1936-12-01	14.1000
1937-01-01	13.2000
1937-02-01	13.5000
1937-03-01	12.9000
1937-04-01	13.0000
1937-05-01	13.5000
1937-06-01	15.1000
1937-07-01	15.4000
1937-08-01	15.5000
1937-09-01	14.6000
1937-10-01	13.7000
1937-11-01	13.5000
1937-12-01	14.1000
1938-01-01	13.1000
1938-02-01	12.8000
1938-03-01	11.8000
1938-04-01	12.7000
1938-05-01	12.8000
1938-06-01	14.0000
1938-07-01	14.4000
1938-08-01	13.9000
1938-09-01	13.2000
1938-10-01	12.7000
1938-11-01	12.5000
1938-12-01	13.6000
1939-01-01	12.5000
1939-02-01	12.6000
1939-03-01	11.9000
1939-04-01	12.7000
1939-05-01	13.0000
1939-06-01	14.9000
1939-07-01	15.2000
1939-08-01	14.9000
1939-09-01	14.5000
1939-10-01	13.5000
1939-11-01	12.4000
1939-12-01	13.8000
1940-01-01	13.1000
1940-02-01	13.1000
1940-03-01	12.8000
1940-04-01	12.7000
1940-05-01	13.0000
1940-06-01	14.9000
1940-07-01	14.8000
1940-08-01	15.9000
1940-09-01	15.0000
1940-10-01	13.8000
1940-11-01	13.7000
1940-12-01	15.1000
1941-01-01	14.1000
1941-02-01	14.9000
1941-03-01	14.6000
1941-04-01	14.9000
1941-05-01	15.0000
1941-06-01	16.9000
1941-07-01	17.0000
1941-08-01	18.0000
1941-09-01	16.6000
1941-10-01	16.0000
1941-11-01	15.9000
1941-12-01	17.9000
1942-01-01	18.0000
1942-02-01	19.1000
1942-03-01	18.4000
1942-04-01	20.3000
1942-05-01	21.8000
1942-06-01	23.8000
1942-07-01	24.5000
1942-08-01	26.4000
1942-09-01	26.5000
1942-10-01	26.2000
1942-11-01	27.0000
1942-12-01	28.2000
1943-01-01	26.8000
1943-02-01	28.2000
1943-03-01	28.3000
1943-04-01	30.3000
1943-05-01	31.2000
1943-06-01	34.3000
1943-07-01	33.8000
1943-08-01	34.4000