condition	mean	min	max
4 h after light	69.23495	68.9657	69.5042
8 h after light	66.9773	65.0378	68.9168
12 h after light	77.134	75.1798	79.0882
4 h after dark	98.77255	88.8981	108.647
8 h after dark	79.7184	78.185	81.2518
12 h after dark	84.3162	83.4677	85.1647