condition	mean	min	max
4 h after light	8.37675	7.56488	9.18862
8 h after light	7.00185	6.6363	7.3674
12 h after light	6.791925	6.2081	7.37575
4 h after dark	8.501123333333334	8.00349	8.81375
8 h after dark	9.342080000000001	6.90164	10.864
12 h after dark	8.699373333333334	8.14895	9.14342