Frequencies for first 10,000 rows of divisionoff variable in namcs2013 dataset 

   Census division |
 where majority of |
       physician's |
    sampled visits |
          occurred |      Freq.     Percent        Cum.
-------------------+-----------------------------------
       New England |         20        0.20        0.20
   Middle Atlantic |      2,014       20.14       20.34
East North Central |      1,992       19.92       40.26
    South Atlantic |      2,165       21.65       61.91
West South Central |      2,017       20.17       82.08
           Pacific |      1,792       17.92      100.00
-------------------+-----------------------------------
             Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017