Mass versus orbital period distribution (top) and orbital eccentricity versus orbital period distribution (bottom) of the known exoplanet population according to NASA Exoplanet Archive. We only display exoplanets with a relative mass and orbital period precision better than 50%. The six exoplanets announced in this paper are marked in blue with a thick circle, and the last three digits of their host star names are displayed (for example “869” for HD 80869 b). The red stars indicate Solar System planets for reference.