condition	mean	min	max
4 h after light	8.298746666666666	8.19012	8.440539999999999
8 h after light	8.350636666666666	8.07278	8.541269999999999
12 h after light	8.71729	8.67211	8.800089999999999
4 h after dark	8.42706	8.323310000000001	8.5133
8 h after dark	8.556486666666666	8.52325	8.61081
12 h after dark	7.971606666666666	7.48613	8.249189999999999