condition mean min max 2 h after light 1.3372021666666667 0.476665 2.89551 6 h after light 1.518997 0.792326 3.15171 10 h after light 0.6087978333333334 0.0 1.36557 14 h after light 0.37537516666666665 0.0 1.25915 18 h after light 0.3011725 0.112091 0.546617 2 h after dark 0.15047750000000001 0.0 0.32271