condition	mean	min	max
4 h after light	8.51391	7.92897	9.09885
8 h after light	7.25629	7.1407	7.37188
12 h after light	7.633925	7.09503	8.17282
4 h after dark	8.335754999999999	8.27594	8.39557
8 h after dark	9.28679	8.80923	9.76435
12 h after dark	9.475629999999999	9.09474	9.85652