condition	mean	min	max
4 h after light	1.968525	1.50701	2.43004
8 h after light	3.13686	2.74227	3.53145
12 h after light	8.650925	8.58765	8.7142
4 h after dark	13.2	12.0847	14.3153
8 h after dark	11.6005	11.4088	11.7922
12 h after dark	6.77324	6.5475	6.99898