Access Database table with duplicate data

I have a table called MonthlyRateChanges. The table has 8 fields. Below is sample of my data. The first row are the field names. I want to delete records that are the same based on the first six fields. The two records below are the same for the first six fields. How can  I delete the whole record if the records are the same? From below both records would be deleted as the first six fields are the same.


Zip             City              County             State Combstax      Combutax      Effdate           Change
36061      BANKS      BULLOCK      AL      0.065000      0.065000      20091001      D
36061      BANKS      BULLOCK      AL      0.065000      0.065000      20191001      I