condition mean min max 2 h after light 3.6701799999999998 0.0 8.75611 6 h after light 2.6897599999999997 0.0 9.25006 10 h after light 4.010386666666667 1.45509 9.27445 14 h after light 3.605341666666667 1.2336 7.33757 18 h after light 2.9905150000000003 0.0 5.81948 2 h after dark 3.281235 0.0 7.11363