condition	mean	min	max
4 h after light	14.1404	13.9539	14.3269
8 h after light	10.387805	9.87381	10.9018
12 h after light	9.63602	9.29522	9.97682
4 h after dark	17.6871	17.4307	17.9435
8 h after dark	20.52345	20.1539	20.893
12 h after dark	19.60085	18.5911	20.6106