condition	mean	min	max
4 h after light	8.58625	7.94125	9.23125
8 h after light	7.584715	7.45289	7.71654
12 h after light	8.000905	7.9659	8.03591
4 h after dark	11.654300000000001	11.167	11.9159
8 h after dark	13.049266666666666	12.4005	13.7873
12 h after dark	10.343233333333334	10.2613	10.4921