condition mean min max 0 h after light 139.3415 135.663 143.02 4 h after light 135.601 130.756 140.446 8 h after light 181.352 171.788 190.916 4 h after dark 170.8595 165.349 176.37 8 h after dark 144.84550000000002 143.375 146.316 12 h after dark 122.65 112.424 132.876