Frequencies for region variable in prds_hosp10_yr2017 dataset :

 CMS Region |
       Code |
 From OSCAR |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        193        5.15        5.15
          2 |        270        7.20       12.35
          3 |        159        4.24       16.59
          4 |        639       17.04       33.64
          5 |        624       16.64       50.28
          6 |        562       14.99       65.27
          7 |        254        6.78       72.05
          8 |        161        4.29       76.34
          9 |        291        7.76       84.10
         10 |        161        4.29       88.40
          . |        435       11.60      100.00
------------+-----------------------------------
      Total |      3,749      100.00

by Jean Roth , jroth@nber.org , 26 Oct 2018