condition	mean	min	max
4 h after light	7.86737	7.18078	8.55396
8 h after light	17.84785	17.1714	18.5243
12 h after light	8.551404999999999	8.34948	8.75333
4 h after dark	4.716776666666667	4.08762	5.28591
8 h after dark	3.56185	3.37506	3.75597
12 h after dark	6.224843333333333	5.29675	7.02973