condition	mean	min	max
0 h after light	8.519485	7.89458	9.14439
4 h after light	8.63132	7.28987	9.97277
8 h after light	7.916285	7.53394	8.29863
4 h after dark	9.83313	9.44956	10.2167
8 h after dark	12.568449999999999	11.9057	13.2312
12 h after dark	7.549049999999999	7.14485	7.95325