condition	mean	min	max
4 h after light	18.1	18.1	18.1
8 h after light	6.1	4.6	7.6
12 h after light	44.5	31.0	58.0
4 h after dark	6.25	1.3	11.2
8 h after dark	33.85	29.3	38.4
12 h after dark	19.65	16.5	22.8