Contact names are quadrupled on certain accounts in Account and Contact Report, why?

Contact names are quadrupled on certain accounts in Account and Contact Report, why?

In a CRM tabular Account and Contact report I have selected the following columns: Account Owner, Account Name, First Name, Last Name,Email and Phone.  Why is the output report showing the same name of contacts 4X????? Stranger is that it isn't quadrupling the number of actual contacts for all records.  I confirmed the names are not duplicated at the Account level.