condition	mean	min	max
0 h after light	17.6616	17.1548	18.1684
4 h after light	2.263845	2.05692	2.47077
8 h after light	1.6029	1.34633	1.85947
4 h after dark	8.595005	7.61868	9.57133
8 h after dark	8.08878	7.95061	8.22695
12 h after dark	12.65116	9.45242	15.8499