condition	mean	min	max
4 h after light	14.83495	11.5326	18.1373
8 h after light	5.14572	4.82566	5.46578
12 h after light	6.26693	6.00417	6.52969
4 h after dark	9.701865000000002	7.50623	11.8975
8 h after dark	11.532399999999999	11.0098	12.055
12 h after dark	17.4925	17.0059	17.9791