Comparison of the frequency distributions of the uncertainties in H (left panel) and G (right panel) between this work (black continuous line), O11 (green dotted line), V15 (red dashed line), H_G of C21 (blue dot-dashed), H_cyan (cyan dashed curve with big dots), and H_orange (orange continuous line with big dots), the last two from M21. The x-axes were arbitrarily cut at 1 to exclude large values.