condition mean min max 4 h after light 69.97795550000001 68.941877 71.014034 8 h after light 73.665182 71.804688 75.525676 12 h after light 64.7653395 57.217242 72.313437 4 h after dark 79.10316 76.281503 81.924817 8 h after dark 66.1235015 48.134314 84.112689 12 h after dark 69.479079 69.479079 69.479079