condition	mean	min	max
4 h after light	15.547598	15.234825	15.860371
8 h after light	16.141168	15.324045	16.958291
12 h after light	14.664074	13.527196	15.800952
4 h after dark	15.705946999999998	15.324045	16.087849
8 h after dark	16.4311615	11.985875	20.876448
12 h after dark	15.324045	15.324045	15.324045