Frequencies for first 10,000 rows of regionoff variable in namcs2014 dataset :

     Region |
      where |
majority of |
physician's |
    sampled |
     visits |
   occurred |      Freq.     Percent        Cum.
------------+-----------------------------------
  Northeast |      1,764       17.64       17.64
    Midwest |      2,301       23.01       40.65
      South |      3,406       34.06       74.71
       West |      2,529       25.29      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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