condition	mean	min	max
4 h after light	6.474805	4.33409	8.61552
8 h after light	8.62936	7.84987	9.40885
12 h after light	7.527094999999999	7.43256	7.62163
4 h after dark	14.522933333333334	11.2985	20.7482
8 h after dark	14.994033333333334	12.1908	18.4293
12 h after dark	12.26825	9.84965	14.9232