condition	mean	min	max
4 h after light	39.2	39.2	39.2
8 h after light	9.3	4.8	13.8
12 h after light	20.5	8.8	32.2
4 h after dark	44.3	36.6	52.0
8 h after dark	38.7	15.7	61.7
12 h after dark	31.6	28.5	34.7