Graphs of exoplanet orbits exist and are easy to locate: For example: http://www.openexoplanetcatalogue.com/planet/KOI-1843.03/ http://www.openexoplanetcatalog

Graphs of exoplanet orbits exist and are easy to locate: For example: http://www.openexoplanetcatalogue.com/planet/KOI-1843.03/ http://www.openexoplanetcatalogue.com/planet/KOI-1843.03/ It isn't on a log scale but this example is easy to see as a counterexample to the OP as there are two planets out in large orbits that orbit close together with a large gap between the first planet.