condition	mean	min	max
4 h after light	10.145225	9.45605	10.8344
8 h after light	5.4855	4.33171	6.63929
12 h after light	5.087815	3.60488	6.57075
4 h after dark	7.76133	5.90109	9.62157
8 h after dark	7.163565	6.52272	7.80441
12 h after dark	9.92375	9.87903	9.96847