condition	mean	min	max
4 h after light	18.8	18.8	18.8
8 h after light	11.45	5.6	17.3
12 h after light	40.55	13.5	67.6
4 h after dark	37.85	37.7	38.0
8 h after dark	4.5	3.2	5.8
12 h after dark	19.4	3.9	34.9