condition	mean	min	max
0 h after light	15.73685	15.204	16.2697
4 h after light	20.049599999999998	16.1607	23.9385
8 h after light	6.74348	5.88597	7.60099
4 h after dark	5.49836	4.35245	6.64427
8 h after dark	21.43555	21.1655	21.7056
12 h after dark	20.984099999999998	20.8554	21.1128