Frequencies for first 10,000 rows of region variable in nhamcsed2008 dataset :

 geographic |
     region |      Freq.     Percent        Cum.
------------+-----------------------------------
  northeast |      1,981       19.81       19.81
    midwest |      1,687       16.87       36.68
      south |      3,961       39.61       76.29
       west |      2,371       23.71      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016