condition mean min max 3 h after light 33.9672 32.9454 34.5822 6 h after light 50.1469 46.2136 52.5201 9 h after light 44.79656666666666 42.653 48.2725 12 h after light 30.9974 27.1445 35.5969 3 h after dark 24.378 21.597 26.3718 6 h after dark 26.4136 24.8993 27.8692 9 h after dark 23.617866666666668 20.8141 25.3256 12 h after dark 18.362933333333334 17.3294 19.906