condition	mean	min	max
0 h after light	22.09655	21.8982	22.2949
4 h after light	8.825385	8.79166	8.85911
8 h after light	7.0614099999999995	6.05735	8.06547
4 h after dark	14.08795	11.63	16.5459
8 h after dark	16.245649999999998	15.6478	16.8435
12 h after dark	14.4454	12.9052	15.9856