condition mean min max 4 h after light 0.8112255 0.748137 0.874314 8 h after light 2.0052 1.79148 2.21892 12 h after light 2.34082 2.30312 2.37852 4 h after dark 0.993473 0.790836 1.19611 8 h after dark 0.9966995000000001 0.893499 1.0999 12 h after dark 1.044575 1.03925 1.0499