condition	mean	min	max
4 h after light	15.403096666666666	13.40879	17.22546
8 h after light	10.736571333333334	6.802633999999999	13.973820000000002
12 h after light	17.354736666666668	14.94924	22.12087
16 h after light	19.109846666666666	17.32987	22.34923
4 h after dark	15.87299	14.98042	17.350179999999998
8 h after dark	18.57222	15.87739	23.66179