condition mean min max 0 h after light 31.66605 30.5548 32.7773 4 h after light 11.4907 10.8622 12.1192 8 h after light 12.405850000000001 11.4461 13.3656 4 h after dark 23.68795 21.441 25.9349 8 h after dark 18.16735 16.4892 19.8455 12 h after dark 23.9022 20.8214 26.983