condition	mean	min	max
4 h after light	11.5	11.5	11.5
8 h after light	88.3	53.5	123.1
12 h after light	75.75	25.5	126.0
4 h after dark	135.7	31.7	239.7
8 h after dark	147.65	75.5	219.8
12 h after dark	32.35	25.8	38.9