condition	mean	min	max
4 h after light	15.780449999999998	15.1351	16.4258
8 h after light	12.9878	10.2644	15.7112
12 h after light	11.67609	9.31188	14.0403
4 h after dark	20.76705	15.3541	26.18
8 h after dark	15.91	13.9395	17.8805
12 h after dark	18.830750000000002	18.6909	18.9706