condition mean min max 4 h after light 58.66335 51.0256 66.3011 8 h after light 50.44215 49.748 51.1363 12 h after light 53.63235 50.8487 56.416 4 h after dark 65.13055 62.4432 67.8179 8 h after dark 67.11035000000001 66.5901 67.6306 12 h after dark 70.00874999999999 69.0204 70.9971