Month	Millions Of Passenger-Miles
1919-03-01	3444.00
1919-04-01	3466.00
1919-05-01	3649.00
1919-06-01	4151.00
1919-07-01	4529.00
1919-08-01	4772.00
1919-09-01	4318.00
1919-10-01	3872.00
1919-11-01	3540.00
1919-12-01	3803.00
1920-01-01	3501.00
1920-02-01	3174.00
1920-03-01	3533.00
1920-04-01	3553.00
1920-05-01	3770.00
1920-06-01	4158.00
1920-07-01	4801.00
1920-08-01	5004.00
1920-09-01	4315.00
1920-10-01	3775.00
1920-11-01	3527.00
1920-12-01	3649.00
1921-01-01	3379.00
1921-02-01	2871.00
1921-03-01	3070.00
1921-04-01	2847.00
1921-05-01	2984.00
1921-06-01	3228.00
1921-07-01	3637.00
1921-08-01	3623.00
1921-09-01	3293.00
1921-10-01	2911.00
1921-11-01	2657.00
1921-12-01	2845.00
1922-01-01	2709.00
1922-02-01	2398.00
1922-03-01	2594.00
1922-04-01	2702.00
1922-05-01	2822.00
1922-06-01	3270.00
1922-07-01	3496.00
1922-08-01	3465.00
1922-09-01	3232.00
1922-10-01	2957.00
1922-11-01	2769.00
1922-12-01	3114.00
1923-01-01	2935.00
1923-02-01	2567.00
1923-03-01	2829.00
1923-04-01	2852.00
1923-05-01	3000.00
1923-06-01	3507.00
1923-07-01	3751.00
1923-08-01	3884.00
1923-09-01	3552.00
1923-10-01	3080.00
1923-11-01	2833.00
1923-12-01	3220.00
1924-01-01	2966.00
1924-02-01	2705.00
1924-03-01	2816.00
1924-04-01	2779.00
1924-05-01	2867.00
1924-06-01	3318.00
1924-07-01	3471.00
1924-08-01	3672.00
1924-09-01	3212.00
1924-10-01	2773.00
1924-11-01	2614.00
1924-12-01	2932.00
1925-01-01	2890.00
1925-02-01	2548.00
1925-03-01	2620.00
1925-04-01	2596.00
1925-05-01	2798.00
1925-06-01	3282.00
1925-07-01	3544.00
1925-08-01	3758.00
1925-09-01	3335.00
1925-10-01	2908.00
1925-11-01	2699.00
1925-12-01	2984.00
1926-01-01	2911.00
1926-02-01	2579.00
1926-03-01	2643.00
1926-04-01	2662.00
1926-05-01	2817.00
1926-06-01	3253.00
1926-07-01	3503.00
1926-08-01	3540.00
1926-09-01	3249.00
1926-10-01	2796.00
1926-11-01	2603.00
1926-12-01	2943.00
1927-01-01	2834.00
1927-02-01	2471.00
1927-03-01	2545.00
1927-04-01	2583.00
1927-05-01	2723.00
1927-06-01	3025.00
1927-07-01	3346.00
1927-08-01	3327.00
1927-09-01	3066.00
1927-10-01	2610.00
1927-11-01	2416.00
1927-12-01	2711.00
1928-01-01	2631.00
1928-02-01	2369.00
1928-03-01	2383.00
1928-04-01	2424.00
1928-05-01	2470.00
1928-06-01	2932.00
1928-07-01	3082.00
1928-08-01	3138.00
1928-09-01	2887.00
1928-10-01	2465.00
1928-11-01	2257.00
1928-12-01	2578.00
1929-01-01	2525.00
1929-02-01	2333.00
1929-03-01	2460.00
1929-04-01	2335.00
1929-05-01	2451.00
1929-06-01	2894.00
1929-07-01	3014.00
1929-08-01	3177.00
1929-09-01	2760.00
1929-10-01	2365.00
1929-11-01	2198.00
1929-12-01	2566.00
1930-01-01	2413.00
1930-02-01	2153.00
1930-03-01	2175.00
1930-04-01	2120.00
1930-05-01	2197.00
1930-06-01	2512.00
1930-07-01	2568.00
1930-08-01	2634.00
1930-09-01	2248.00
1930-10-01	1959.00
1930-11-01	1828.00
1930-12-01	2014.00
1931-01-01	1915.00
1931-02-01	1748.00
1931-03-01	1759.00
1931-04-01	1831.00
1931-05-01	1869.00
1931-06-01	2034.00
1931-07-01	2115.00
1931-08-01	2076.00
1931-09-01	1900.00
1931-10-01	1541.00
1931-11-01	1468.00
1931-12-01	1641.00
1932-01-01	1505.00
1932-02-01	1401.00
1932-03-01	1406.00
1932-04-01	1308.00
1932-05-01	1425.00
1932-06-01	1463.00
1932-07-01	1613.00
1932-08-01	1556.00
1932-09-01	1529.00
1932-10-01	1231.00
1932-11-01	1156.00
1932-12-01	1381.00
1933-01-01	1170.00
1933-02-01	1047.00
1933-03-01	1000.00
1933-04-01	1089.00
1933-05-01	1173.00
1933-06-01	1498.00
1933-07-01	1633.00
1933-08-01	1717.00
1933-09-01	1721.00
1933-10-01	1584.00
1933-11-01	1223.00
1933-12-01	1491.00
1934-01-01	1345.00
1934-02-01	1234.00
1934-03-01	1342.00
1934-04-01	1376.00
1934-05-01	1340.00
1934-06-01	1612.00
1934-07-01	1779.00
1934-08-01	1855.00
1934-09-01	1696.00
1934-10-01	1543.00
1934-11-01	1279.00
1934-12-01	1635.00
1935-01-01	1491.00
1935-02-01	1341.00
1935-03-01	1370.00
1935-04-01	1386.00
1935-05-01	1377.00
1935-06-01	1593.00
1935-07-01	1709.00
1935-08-01	1855.00
1935-09-01	1659.00
1935-10-01	1474.00
1935-11-01	1435.00
1935-12-01	1787.00
1936-01-01	1690.00
1936-02-01	1582.00
1936-03-01	1539.00
1936-04-01	1577.00
1936-05-01	1579.00
1936-06-01	1944.00
1936-07-01	2264.00
1936-08-01	2311.00
1936-09-01	2065.00
1936-10-01	1912.00
1936-11-01	1798.00
1936-12-01	2164.00
1937-01-01	2030.00
1937-02-01	1797.00
1937-03-01	1921.00
1937-04-01	1857.00
1937-05-01	1902.00
1937-06-01	2163.00
1937-07-01	2438.00
1937-08-01	2429.00
1937-09-01	2201.00
1937-10-01	1977.00
1937-11-01	1817.00
1937-12-01	2127.00
1938-01-01	1978.00
1938-02-01	1645.00
1938-03-01	1646.00
1938-04-01	1700.00
1938-05-01	1670.00
1938-06-01	1877.00
1938-07-01	2106.00
1938-08-01	1962.00
1938-09-01	1813.00
1938-10-01	1649.00
1938-11-01	1554.00
1938-12-01	1926.00
1939-01-01	1791.00
1939-02-01	1558.00
1939-03-01	1618.00
1939-04-01	1681.00
1939-05-01	1725.00
1939-06-01	2075.00
1939-07-01	2354.00
1939-08-01	2283.00
1939-09-01	2097.00
1939-10-01	1866.00
1939-11-01	1591.00
1939-12-01	2020.00
1940-01-01	1932.00
1940-02-01	1709.00
1940-03-01	1804.00
1940-04-01	1692.00
1940-05-01	1699.00
1940-06-01	2060.00
1940-07-01	2243.00
1940-08-01	2480.00
1940-09-01	2144.00
1940-10-01	1922.00
1940-11-01	1772.00
1940-12-01	2312.00
1941-01-01	2216.00
1941-02-01	2029.00
1941-03-01	2228.00
1941-04-01	2170.00
1941-05-01	2140.00
1941-06-01	2564.00
1941-07-01	2756.00
1941-08-01	2936.00
1941-09-01	2527.00
1941-10-01	2397.00
1941-11-01	2299.00
1941-12-01	3055.00
1942-01-01	3094.00
1942-02-01	2895.00
1942-03-01	3070.00
1942-04-01	3427.00
1942-05-01	3822.00
1942-06-01	4238.00
1942-07-01	4765.00
1942-08-01	5395.00
1942-09-01	5500.00
1942-10-01	5508.00
1942-11-01	5663.00
1942-12-01	6314.00
1943-01-01	5914.00
1943-02-01	5668.00
1943-03-01	6482.00
1943-04-01	6715.00
1943-05-01	7008.00
1943-06-01	7813.00
1943-07-01	8342.00
1943-08-01	8610.00
1943-09-01	7851.00
1943-10-01	7706.00
1943-11-01	7569.00
1943-12-01	8136.00
1944-01-01	7563.00
1944-02-01	7275.00
1944-03-01	7823.00
1944-04-01	7973.00
1944-05-01	7979.00
1944-06-01	8405.00
1944-07-01	8707.00
1944-08-01	8598.00
1944-09-01	8067.00
1944-10-01	7790.00
1944-11-01	7468.00
1944-12-01	7908.00
1945-01-01	7372.00
1945-02-01	6694.00
1945-03-01	7048.00
1945-04-01	6826.00
1945-05-01	7347.00
1945-06-01	8015.00
1945-07-01	8185.00
1945-08-01	8201.00
1945-09-01	7564.00
1945-10-01	7964.00
1945-11-01	7957.00
1945-12-01	8572.00
1946-01-01	7454.00
1946-02-01	6079.00
1946-03-01	5955.00
1946-04-01	5472.00
1946-05-01	4726.00
1946-06-01	5387.00
1946-07-01	5711.00
1946-08-01	5712.00
1946-09-01	4927.00
1946-10-01	4466.00
1946-11-01	4267.00
1946-12-01	4543.00
1947-01-01	4119.00
1947-02-01	3485.00
1947-03-01	3528.00
1947-04-01	3489.00
1947-05-01	3728.00
1947-06-01	4096.00
1947-07-01	4412.00
1947-08-01	4481.00
1947-09-01	3854.00
1947-10-01	3450.00
1947-11-01	3341.00
1947-12-01	3947.00
1948-01-01	3653.00
1948-02-01	3198.00
1948-03-01	3272.00
1948-04-01	3044.00
1948-05-01	3152.00
1948-06-01	3660.00
1948-07-01	4029.00
1948-08-01	3896.00
1948-09-01	3521.00
1948-10-01	3101.00
1948-11-01	2990.00
1948-12-01	3538.00
1949-01-01	3368.00
1949-02-01	2740.00
1949-03-01	2744.00
1949-04-01	2770.00
1949-05-01	2735.00
1949-06-01	3111.00
1949-07-01	3445.00
1949-08-01	3317.00
1949-09-01	2911.00
1949-10-01	2534.00
1949-11-01	2488.00
1949-12-01	2912.00
1950-01-01	2730.00
1950-02-01	2215.00
1950-03-01	2304.00
1950-04-01	2362.00
1950-05-01	2215.00
1950-06-01	2830.00
1950-07-01	3042.00
1950-08-01	3125.00
1950-09-01	2818.00
1950-10-01	2573.00
1950-11-01	2500.00
1950-12-01	3058.00
1951-01-01	3004.00
1951-02-01	2416.00
1951-03-01	2718.00
1951-04-01	2583.00
1951-05-01	2638.00
1951-06-01	3093.00
1951-07-01	3191.00
1951-08-01	3288.00
1951-09-01	2918.00
1951-10-01	2718.00
1951-11-01	2697.00
1951-12-01	3355.00
1952-01-01	3089.00
1952-02-01	2697.00
1952-03-01	2759.00
1952-04-01	2684.00
1952-05-01	2802.00
1952-06-01	3065.00
1952-07-01	3076.00
1952-08-01	3133.00
1952-09-01	2696.00
1952-10-01	2481.00
1952-11-01	2417.00
1952-12-01	3117.00
1953-01-01	2943.00
1953-02-01	2389.00
1953-03-01	2491.00
1953-04-01	2499.00
1953-05-01	2490.00
1953-06-01	2830.00
1953-07-01	3106.00
1953-08-01	2965.00
1953-09-01	2514.00
1953-10-01	2367.00
1953-11-01	2297.00
1953-12-01	2770.00
1954-01-01	2633.00
1954-02-01	2125.00
1954-03-01	2186.00
1954-04-01	2217.00
1954-05-01	2281.00
1954-06-01	2642.00
1954-07-01	2878.00
1954-08-01	2925.00
1954-09-01	2405.00
1954-10-01	2191.00
1954-11-01	2158.00
1954-12-01	2623.00
1955-01-01	2487.00
1955-02-01	2059.00
1955-03-01	2118.00
1955-04-01	2221.00
1955-05-01	2270.00
1955-06-01	2560.00
1955-07-01	2792.00
1955-08-01	2742.00
1955-09-01	2314.00
1955-10-01	2152.00
1955-11-01	2162.00
1955-12-01	2646.00
1956-01-01	2449.00
1956-02-01	2101.00
1956-03-01	2200.00
1956-04-01	2215.00
1956-05-01	2121.00
1956-06-01	2584.00
1956-07-01	2792.00
1956-08-01	2745.00
1956-09-01	2241.00