condition mean min max 0 h after light 16.43105 15.5036 17.3585 4 h after light 15.42585 14.2581 16.5936 8 h after light 9.397775 8.35505 10.4405 4 h after dark 11.15753 9.34066 12.9744 8 h after dark 17.775750000000002 16.433 19.1185 12 h after dark 18.087400000000002 17.3092 18.8656