condition	mean	min	max
4 h after light	8.8	8.8	8.8
8 h after light	5.9	3.5	8.3
12 h after light	6.4	6.4	6.4
4 h after dark	12.9	9.9	15.9
8 h after dark	25.45	20.0	30.9
12 h after dark	38.8	26.7	50.9