A-F sample probability density of the fraction f of stars hosting at least one giant planet at wide orbit, taking into account the detections ({ d_j }) of the two planetary systems β Pictoris and HR 8799 and a linear-flat prior. The interval considered is [1,1000]  AU and [1,13]  M_J. The confidence interval at 68% confident level, labeled CL, (blue) and at 95% CL (dark blue) are overplotted on the distribution. A uniform planet population has been generated with random orbital parameters.