condition	mean	min	max
4 h after light	7.380595	6.32358	8.43761
8 h after light	7.405514999999999	7.29486	7.51617
12 h after light	11.3641	11.0897	11.6385
4 h after dark	15.265633333333334	14.9041	15.5785
8 h after dark	14.1424	13.5945	14.5343
12 h after dark	10.310146666666666	9.74338	11.4377