Distribution of the log-Bayesian evidence for the different models tested using the Gaussian process approach to accountfor the stellar activity (see Sect. 3). The shaded distributions correspond to the HARPS+ESPRESSO dataset (upper panel), while open distributions correspond to the ESPRESSO stand-alone dataset (lower panel). The median from the null hypothesis model for each dataset (labeled 0p) has been subtracted. In the upper panel the two-planet model (2p1c2c) has a very low odds ratio, hence lying outside of the plot limits.