condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0229625 0.0 0.0688875 9 h after light 0.02217066666666667 0.0 0.066512 12 h after light 0.016992725 0.0 0.0679709 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.076774 0.0 0.230322 12 h after dark 0.16251 0.0 0.32502