condition	mean	min	max
0 h after light	19.091099999999997	18.4498	19.7324
4 h after light	10.27935	10.0529	10.5058
8 h after light	8.033075	6.69548	9.37067
4 h after dark	12.687249999999999	12.2739	13.1006
8 h after dark	14.5153	12.4378	16.5928
12 h after dark	14.0566	11.823	16.2902