condition	mean	min	max
4 h after light	18.18185	17.9552	18.4085
8 h after light	14.05705	13.7528	14.3613
12 h after light	11.087399999999999	10.542	11.6328
4 h after dark	16.7528	15.673	17.8326
8 h after dark	19.7453	19.684	19.8066
12 h after dark	18.683	18.262	19.104