Foulques.renard's interactive graph and data of "Evolution of cases recorded by OECD experts by selection methode (1979-2021)" is a , showing Single stage random selection (e.g. polling company recruitment), Two-stage random selection (e.g. civic lottery), Random selection (stages unclear), A mix of random and targeted selection, Three stage random selection; with Year(s) of project in the x-axis and Number of cases in the y-axis.. The x-axis shows values from 0 to 0. The y-axis shows values from 0 to 0.