condition	mean	min	max
4 h after light	14.094100000000001	12.6231	15.5651
8 h after light	15.605250000000002	15.1452	16.0653
12 h after light	18.622300000000003	17.4523	19.7923
4 h after dark	11.803133333333333	11.2925	12.4878
8 h after dark	18.2128	17.0515	19.0507
12 h after dark	18.363966666666666	16.2818	20.169