with permanent-surface runways: 16 with runways

3.247033 0.307973 1.5421% 1953 3.320717 0.301140 1.5703% 1952 1.688718 0.592165 1.5948% 1951 0.177092 5.646794 5.0183% 1950 0.600503 1.665271 1.7034% 1949 3.219263 0.310630 -0.4250% 1948 1.004268 0.995750 6.7886% 1947 0.155927 6.413245 13.9149% 1946 2.424985 0.412374 22.7896% 1945 0.266436 3.753244 3.2661% 1944 0.242473 4.124163 -13.0688% 1919 0.647066 1.545438 15.7925% 1918 0.449694 2.223736 14.2845% 1917 1.750033 0.571418 16.6637% 1916 0.211116 4.736732 20.0069% 1915 1.249983 0.800011 9.1939% 1914 1.225306 0.816123 2.3510% 1913 1.197161 0.835310 1.1940% 1912 0.054793 18.250525 -1.1800% 1875 0.745596 1.341210 YEAR: 1915 2010 30.224792 0.033085 4% Est. 2005 27.764320 0.036017 4% Est. 2005 1.169859 0.854804 4% Est. 2005 30.257197 0.033050 4% Est. 1994 20.715687 0.048273 4% Est. 2008 20.902731 0.047841 4% Est. 2007 22.390161 0.044662 4% Est. 1996

laymen