condition	mean	min	max
4 h after light	21.803265000000003	8.40783	35.1987
8 h after light	14.00045	10.7773	17.2236
12 h after light	15.17745	14.713	15.6419
4 h after dark	12.08907	8.56301	15.2946
8 h after dark	17.485	15.6788	21.0512
12 h after dark	19.099333333333334	18.1541	19.8677