condition	mean	min	max
4 h after light	17.6445595	16.733412	18.555707
8 h after light	18.9645815	15.98987	21.939293
12 h after light	15.086003000000002	15.052566	15.11944
4 h after dark	13.3668515	11.805043	14.92866
8 h after dark	10.095127999999999	8.493465	11.696791
12 h after dark	15.122752	15.122752	15.122752