condition	mean	min	max
4 h after light	18.5005115	17.889061	19.111962
8 h after light	17.546467999999997	17.518099	17.574837
12 h after light	14.421423	13.815996	15.02685
4 h after dark	17.242516000000002	16.917478	17.567554
8 h after dark	15.506831	14.475893	16.537769
12 h after dark	16.854045	16.854045	16.854045