condition	mean	min	max
4 h after light	15.865174	14.515109	17.215239
8 h after light	15.722627	12.246748	19.198506
12 h after light	16.8183165	15.489247	18.147386
4 h after dark	14.515109	14.515109	14.515109
8 h after dark	13.4200565	12.716038	14.124075
12 h after dark	13.911723	13.911723	13.911723