condition	mean	min	max
0 h after light	21.01705	18.6412	23.3929
4 h after light	12.3946	10.1121	14.6771
8 h after light	14.912700000000001	13.169	16.6564
4 h after dark	19.88485	17.9273	21.8424
8 h after dark	17.00375	16.4066	17.6009
12 h after dark	17.09755	14.1963	19.9988