condition	mean	min	max
4 h after light	10.3	10.3	10.3
8 h after light	6.9	5.4	8.4
12 h after light	14.2	13.1	15.3
4 h after dark	8.3	7.4	9.2
8 h after dark	19.05	17.3	20.8
12 h after dark	13.7	9.1	18.3