condition	mean	min	max
4 h after light	18.0118955	16.978337	19.045454
8 h after light	18.7752595	14.515109	23.03541
12 h after light	40.721024	27.706457	53.735591
4 h after dark	56.5322995	23.739355	89.325244
8 h after dark	177.313534	107.068947	247.558121
12 h after dark	20.439063	20.439063	20.439063