condition	mean	min	max
4 h after light	6.0	6.0	6.0
8 h after light	13.1	12.2	14.0
12 h after light	11.149999999999999	9.6	12.7
4 h after dark	24.049999999999997	9.7	38.4
8 h after dark	18.2	9.5	26.9
12 h after dark	6.5	5.9	7.1