condition	mean	min	max
4 h after light	8.042305	6.82351	9.2611
8 h after light	5.649825	4.90965	6.39
12 h after light	6.515025	6.1577	6.87235
4 h after dark	8.173736666666667	6.92906	9.50665
8 h after dark	5.95198	4.19635	7.18454
12 h after dark	7.836853333333333	5.67418	9.9675