condition	mean	min	max
4 h after light	6.864920000000001	6.700489999999999	7.015110000000001
8 h after light	7.00966	6.869280000000001	7.27312
12 h after light	7.435346666666667	7.07252	7.7855
4 h after dark	6.784173333333333	6.577539999999999	7.05647
8 h after dark	6.76903	6.59997	7.07988
12 h after dark	6.486346666666667	6.301	6.609430000000001