condition	mean	min	max
4 h after light	21.997847	21.852895	22.142799
8 h after light	17.223512999999997	16.896451	17.550575
12 h after light	15.265808	13.720212	16.811404
4 h after dark	16.83467	15.333437	18.335903
8 h after dark	18.2187335	17.769387	18.66808
12 h after dark	17.881241	17.881241	17.881241