condition	mean	min	max
0 h after light	17.063299999999998	16.6423	17.4843
4 h after light	8.22122	8.20231	8.24013
8 h after light	9.47311	9.02947	9.91675
4 h after dark	12.7689	11.0282	14.5096
8 h after dark	13.76855	13.584	13.9531
12 h after dark	16.24265	15.0542	17.4311