condition	mean	min	max
4 h after light	6.806315	6.58723	7.0254
8 h after light	5.614965	5.34131	5.88862
12 h after light	6.985894999999999	6.15738	7.81441
4 h after dark	8.589046666666666	8.52387	8.6569
8 h after dark	7.9281033333333335	6.91042	8.81918
12 h after dark	7.378993333333334	7.21515	7.49285