Frequencies for first 10,000 rows of region variable in nhamcsed1992 dataset :

 Geographic |
  region of |
   hospital |      Freq.     Percent        Cum.
------------+-----------------------------------
  Northeast |      5,412       54.12       54.12
    Midwest |      3,411       34.11       88.23
      South |        700        7.00       95.23
       West |        477        4.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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