Distribution of the host star metallicities (left) and orbital eccentricities (right) for the gas giant planets (>100 M_⊕). The upper histograms represent the planets with semi-major axis between 1 and 4 AU and the lower quadrant is for planets beyond 4 AU. The hatched areas plot the contributions of the multiple systems and the red color is used for the 5 companions (with a > 4 AU) unveiled in the present paper. The gray arrows mark in every quadrant the median of the distribution for the multiple systems and the black ones are for single-planet systems.