condition	mean	min	max
4 h after light	2.9	2.9	2.9
8 h after light	13.85	4.2	23.5
12 h after light	8.6	5.6	11.6
4 h after dark	11.8	7.9	15.7
8 h after dark	15.850000000000001	6.9	24.8
12 h after dark	7.65	7.3	8.0