condition mean min max 0 h after light 7.71444 7.52279 7.90609 4 h after light 9.64494 8.79378 10.4961 8 h after light 12.075700000000001 11.2752 12.8762 4 h after dark 14.03295 13.6216 14.4443 8 h after dark 11.7304 11.6579 11.8029 12 h after dark 8.204495 6.79061 9.61838