condition	mean	min	max
0 h after light	18.108649999999997	16.055	20.1623
4 h after light	11.4269	9.6846	13.1692
8 h after light	8.944875	8.68322	9.20653
4 h after dark	13.995000000000001	11.6781	16.3119
8 h after dark	10.094584999999999	9.24217	10.947
12 h after dark	11.739650000000001	11.3583	12.121