condition	mean	min	max
4 h after light	6.181760000000001	5.95953	6.40399
8 h after light	4.89921	4.82841	4.97001
12 h after light	5.269095	5.07297	5.46522
4 h after dark	8.33146	8.26034	8.40258
8 h after dark	7.19198	7.09465	7.28931
12 h after dark	6.9038900000000005	6.44055	7.36723