condition	mean	min	max
0 h after light	19.264899999999997	17.9977	20.5321
4 h after light	16.3776	15.2002	17.555
8 h after light	12.1629	11.4263	12.8995
4 h after dark	15.94115	15.0255	16.8568
8 h after dark	21.899949999999997	20.2216	23.5783
12 h after dark	16.6265	15.859	17.394