condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0851795 0.0 0.170359 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.170798 0.0 0.341596 2 h after dark 0.0875385 0.0 0.175077 4 h after dark 0.0 0.0 0.0 8 h after dark 0.1844575 0.0 0.368915 12 h after dark 0.090764 0.0 0.181528