condition	mean	min	max
4 h after light	15.140095500000001	13.841277	16.438914
8 h after light	16.778208499999998	15.723904	17.832513
12 h after light	13.857386	12.629591	15.085181
4 h after dark	16.754047999999997	15.97654	17.531556
8 h after dark	12.9964955	12.456548	13.536443
12 h after dark	11.766756	11.766756	11.766756