condition	mean	min	max
4 h after light	14.6704	12.9048	16.436
8 h after light	11.1908	10.0581	12.3235
12 h after light	8.68148	7.98611	9.37685
4 h after dark	15.689333333333334	13.7059	17.3687
8 h after dark	19.892799999999998	17.3965	22.2461
12 h after dark	20.9615	17.1637	23.7952