condition mean min max 2 h after light 0.01302825 0.0 0.0781695 6 h after light 0.0253515 0.0 0.152109 10 h after light 0.0 0.0 0.0 14 h after light 0.0 0.0 0.0 18 h after light 0.012612516666666665 0.0 0.0756751 2 h after dark 0.0 0.0 0.0