condition	mean	min	max
4 h after light	15.7751075	15.156983	16.393232
8 h after light	17.621933	17.498343	17.745523
12 h after light	17.994563999999997	17.745523	18.243605
4 h after dark	35.141194999999996	21.437506	48.844884
8 h after dark	20.793156500000002	14.545495	27.040818
12 h after dark	14.801709	14.801709	14.801709