condition	mean	min	max
4 h after light	14.9093	13.9395	15.8791
8 h after light	9.38073	9.19655	9.56491
12 h after light	6.101395	5.95395	6.24884
4 h after dark	13.572766666666666	12.8955	14.6475
8 h after dark	9.988339999999999	7.47739	13.0865
12 h after dark	20.450333333333333	18.9515	21.6785