condition	mean	min	max
0 h after light	15.323450000000001	14.6349	16.012
4 h after light	13.87755	13.0797	14.6754
8 h after light	8.68726	8.08426	9.29026
4 h after dark	7.300565000000001	6.57346	8.02767
8 h after dark	12.2736	11.757	12.7902
12 h after dark	13.424299999999999	12.8818	13.9668