with permanent-surface runways: 2 with

0.525778 3.5571% 1956 2.112813 0.473303 3.3098% 1955 4.000019 0.249999 3.4226% 1954 1.789116 0.558935 1.5421% 1953 0.097567 10.249364 1.5703% 1952 1.746621 0.572534 1.5948% 1951 0.565310 1.768940 5.0183% 1950 3.144854 0.317980 1.7034% 1949 0.654600 1.527650 -0.4250% 1948 0.194561 5.139778 6.7886% 1947 0.212705 4.701352 13.9149% 1946 0.165250 6.051425 22.7896% 1945 0.580874 1.721544 3.2661% 1944 0.242473 4.124163 1.3234% 1943 0.446749 2.238395 2.7232% 1942 0.420002 2.380942 -2.0001% 1925 0.139275 7.180055 0.6731% 1924 0.452875 2.208117 2.0549% 1923 0.246198 4.061776 -0.6823% 1927 0.979999 1.020409

Gantry