condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.03267813333333333 0.0 0.0980344 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.03333063333333333 0.0 0.0999919 12 h after dark 0.0 0.0 0.0