title: Can monthly searches for a specific month in Keyword planner change in future?
body: <p>I am requesting monthly_searches for a specific keyword (with its suggestions) via keyword planner using google ads api (with google-ads client python library) but getting different monthly volumes, depending on when I do requests for a specific month.</p>
  <p>If I, for example, request (in 2021-02) monthly_searches for 2021-01 , and then later, in 2021-06 monthly searches for the same month (i.e. 2021-01), are both volumes guaranteed to be the same? Or, may google change the scale or correct the numbers?</p>