Distribution of the ∆ log L difference of fitting the HIRES RV data of 71 stars known to host a single massive planet with a Keplerian model. We repeated the fit twice, once with the original (uncorrected) RVs and once with the corrected RVs, and calculated the difference in log-likelihood improvement (∆ log L) with respect to a weighted-mean model of a constant RV star. The list of planets and corresponding ∆ log L values is given in Table B.1.