condition mean min max 4 h after light 10.681625 9.76355 11.5997 8 h after light 12.45075 12.3147 12.5868 12 h after light 12.9906 11.9701 14.0111 4 h after dark 17.349 16.9857 17.7123 8 h after dark 12.445350000000001 12.1659 12.7248 12 h after dark 13.91145 12.5305 15.2924