condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.3156446666666667 0.0 0.578466 9 h after light 0.197087 0.177881 0.217096 12 h after light 0.27939925 0.0 0.524988 3 h after dark 0.09453433333333333 0.0 0.283603 6 h after dark 0.334581 0.0 0.779102 9 h after dark 0.068442 0.0 0.205326 12 h after dark 0.0 0.0 0.0