condition	mean	min	max
4 h after light	11.23695	9.02975	12.7907
8 h after light	8.328276666666667	4.09973	11.4291
12 h after light	8.14928	6.34225	10.8601
4 h after dark	15.360533333333334	10.1755	18.4399
8 h after dark	17.2133	12.1208	19.8913
12 h after dark	17.5823	12.7369	25.8253