condition	mean	min	max
0 h after light	15.8614	15.8528	15.87
4 h after light	15.713650000000001	15.2216	16.2057
8 h after light	13.576699999999999	12.8707	14.2827
4 h after dark	16.04655	13.5126	18.5805
8 h after dark	18.4827	17.7989	19.1665
12 h after dark	16.46725	15.3773	17.5572