condition	mean	min	max
4 h after light	19.053	17.8566	20.2494
8 h after light	14.72885	14.3014	15.1563
12 h after light	19.793599999999998	18.9731	20.6141
4 h after dark	21.841	20.5163	23.1657
8 h after dark	21.54775	19.7168	23.3787
12 h after dark	24.52655	24.3093	24.7438