condition	mean	min	max
3 h after light	6.45706	5.46012	6.95971
6 h after light	7.15585	6.00896	8.33919
9 h after light	5.06961	4.58848	5.89481
12 h after light	5.823675	5.22321	6.48956
3 h after dark	7.716566666666667	6.4805	9.0561
6 h after dark	6.926406666666667	5.94252	7.46917
9 h after dark	6.15158	5.26541	7.44381
12 h after dark	3.93513	3.57254	4.29772