Design and implement API for responding to the below question: How many from Illinois app under "Groups" > "Create new event" Source: https://github.com/rokwire/illinois-app/issues/3829, [Rokwire Analytics API Schema Update](https://docs.google.com/document/d/10i5MlRHmwICmcVvaMi6lVsPVATNQ1gHfIkbHR5nG9rI/edit), @yoonlees.