condition	mean	min	max
4 h after light	5.975585000000001	4.93883	7.01234
8 h after light	15.518799999999999	15.3971	15.6405
12 h after light	16.5093	15.1955	17.8231
4 h after dark	11.93985	11.7501	12.1296
8 h after dark	6.882365	6.85193	6.9128
12 h after dark	5.63599	5.18636	6.08562