condition mean min max 3 h after light 13.453917166666667 0.840696 46.2624 7 h after light 9.154521416666666 0.966587 23.9326 11 h after light 8.736405416666667 0.65178 18.9067 2 h after dark 10.29271325 0.351471 29.0284 6 h after dark 8.572668499999999 0.457464 20.3555 10 h after dark 8.571685833333333 0.378104 24.3159