Revisited M-R diagram after applying our criteria to keep reliable and robust mass measurements with relative uncertainties smaller than 25% for mass and smaller than 8% for radius. The red triangles and blue circles correspond to data with mass determination from TTVs and RVs, respectively. We also display the composition lines of pure-iron (brown), Earth-like planets (light-brown) and water ice (blue) (Dorn et al. 2015). We also plot the contour lines and the distribution of exoplanet mass (top) and radius (right) of our sample.