condition	mean	min	max
4 h after light	6.1451199999999995	4.42047	8.16297
8 h after light	4.62061	1.60342	8.30515
12 h after light	6.935873333333333	4.12817	12.2002
4 h after dark	7.465373333333333	7.07089	7.74065
8 h after dark	4.321593333333333	2.16753	5.57043
12 h after dark	4.58832	4.21051	4.88502