condition	mean	min	max
0 h after light	17.39665	16.8685	17.9248
4 h after light	14.01675	12.853	15.1805
8 h after light	10.175595000000001	8.45179	11.8994
4 h after dark	9.89101	8.68792	11.0941
8 h after dark	17.1511	16.8777	17.4245
12 h after dark	20.055799999999998	18.7237	21.3879