condition mean min max 0 h after light 9.581235 9.39995 9.76252 4 h after light 5.0806000000000004 3.75828 6.40292 8 h after light 2.38211 1.8206 2.94362 4 h after dark 6.24589 2.90461 9.58717 8 h after dark 6.070015 5.08473 7.0553 12 h after dark 12.2843 11.4907 13.0779