Left: R_P/p vs. distance including lines of sight at high Galactic latitudes (|b| > 60°). The vertical solid line denotes 250 pc. Each bin contains 100 measurements, except for the last bin, which contains 89. Red stars correspond to the median value of each distance bin. Right: same as in the left panel, but for the intermediate-latitude lines of sight (|b| < 60°). Each bin contains 220 measurements, except for the last bin, which contains 202.