condition	mean	min	max
4 h after light	5.313085	4.32401	6.30216
8 h after light	5.528095	5.4897	5.56649
12 h after light	5.987405	5.60321	6.3716
4 h after dark	7.737393333333333	6.51115	8.76067
8 h after dark	7.587759999999999	7.11079	8.19
12 h after dark	7.38132	6.71765	7.7148