condition	mean	min	max
0 h after light	18.4162	18.2605	18.5719
4 h after light	12.586649999999999	12.2073	12.966
8 h after light	8.109205	8.05216	8.16625
4 h after dark	14.89555	12.8355	16.9556
8 h after dark	19.553649999999998	18.4452	20.6621
12 h after dark	12.782599999999999	8.7355	16.8297