Get the account's average rating for each of the last four full months, side by side for each year (up to the last four years). The window is fixed; there are no date parameters. The month keys are the names of the last four full months.

Prerequisites: a bearer token. Optional: review_site_id.

Authentication: Account token. Results cover the locations of the caller's own account; a Partner token gets no data.

Rate limit: 120 requests per minute, counted per user (the token’s user).