condition	mean	min	max
4 h after light	8.100325	7.64915	8.5515
8 h after light	3.6347199999999997	3.38334	3.8861
12 h after light	3.315425	3.18368	3.44717
4 h after dark	4.29407	3.81635	4.57872
8 h after dark	6.552123333333333	6.05585	7.46042
12 h after dark	6.72088	5.88083	7.58627