condition mean min max 4 h after light 23.69115 22.3003 25.082 8 h after light 12.31635 11.9111 12.7216 12 h after light 9.8889 9.2817 10.4961 4 h after dark 9.213180000000001 9.17408 9.25228 8 h after dark 15.256 15.0558 15.4562 12 h after dark 16.0732 15.7223 16.4241