condition	mean	min	max
4 h after light	8.0	8.0	8.0
8 h after light	26.8	15.6	38.0
12 h after light	39.5	13.1	65.9
4 h after dark	25.35	19.3	31.4
8 h after dark	4.0	3.0	5.0
12 h after dark	20.45	17.9	23.0