condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.068053775 0.0 0.184462 3 h after dark 0.0 0.0 0.0 6 h after dark 0.23686933333333332 0.0 0.485313 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0