condition	mean	min	max
4 h after light	9.079550000000001	8.0601	10.099
8 h after light	8.149825	7.56073	8.73892
12 h after light	10.325745000000001	9.89949	10.752
4 h after dark	14.69805	14.5808	14.8153
8 h after dark	12.27455	11.972	12.5771
12 h after dark	11.849699999999999	10.4729	13.2265