condition mean min max 4 h after light 56.15155 53.3166 58.9865 8 h after light 20.4482 20.2586 20.6378 12 h after light 32.9525 31.1608 34.7442 4 h after dark 47.42225 44.5186 50.3259 8 h after dark 75.16120000000001 69.9363 80.3861 12 h after dark 67.73670000000001 66.2857 69.1877