According to the Seventeen Percent Rule, in all professions and advocations, the performance of only seventeen percent of those in the field reach the level of excellence. This includes physicians, lawyers, truck drivers, police officers, dentists, nurses, teachers, plumbers, and bureaucrats. I don't believe the Seventeen Percent Rule applies to writers and criminal investigators. In those professions, excellence is so difficult to achieve it is rare. It's probably more like five percent. For politicians, there is no such thing as excellence. The best we can hope for is that they don't steal us blind then sell us down the river.