condition	mean	min	max
4 h after light	12.736308000000001	12.381804	13.090812
8 h after light	15.1706515	14.052791	16.288512
12 h after light	17.383521000000002	14.170315	20.596727
4 h after dark	16.7779445	15.535824	18.020065
8 h after dark	19.8460245	18.096654	21.595395
12 h after dark	13.156361	13.156361	13.156361