condition	mean	min	max
4 h after light	7.808505	6.73988	8.87713
8 h after light	6.648935	6.34494	6.95293
12 h after light	7.53027	7.23356	7.82698
4 h after dark	6.630576666666667	5.73875	8.05572
8 h after dark	9.755749999999999	9.29088	10.3439
12 h after dark	8.46145	7.93531	9.19518