total: 474 usable: 418 with permanent-surface runways: 32 with runways

0.533239 1.875333 8.8650% 1978 4.569688 0.218833 7.2813% 1977 4.259540 0.234767 6.6558% 1976 0.481532 2.076706 6.4073% 1975 7.906295 0.126481 9.8159% 1974 0.325678 3.070518 9.0909% 1973 7.388400 0.135347 6.4509% 1972 0.341207 2.930776 4.7304% 1971 1.436884 0.695950 5.7132% 1970 0.333336 2.999976 5.5272% 1969 0.168649 5.929463 5.5714% 1968 0.597466 1.673734 5.0148% 1967 1.233677 0.810585 2.5719% 1966 2.713229 0.368564 3.5485% 1965 0.304780 3.281056 2.7360% 1964 0.134048 7.460017 1.5423% 1963 2.571383 0.388896 1.5697% 1962 0.111100 9.000869 2.2421% 1961 2.094020 0.477550 0.9709% 1960 1.292875 0.773470 1.6442% 1959 2.338496 0.427625 2.3579% 1958 0.377859 2.646487 2.0623% 1957 0.912230 1.096215 3.5571% 1956 0.239354 4.177914 3.3098% 1955 1.083678 0.922783 3.4226% 1954 3.287381 0.304193 1.5421% 1953 0.766279 1.305007 1.5703% 1952 0.817305 1.223534 1.5948% 1951 0.954367 1.047815 5.0183% 1950 2.950780 0.338893 1.7034% 1949 0.760515 1.314898 -0.4250% 1948 3.522606 0.283881 6.7886% 1947 0.123232 8.114802 13.9149% 1946 0.307456 3.252494 22.7896%

parallaxes