Frequencies for region variable in prds_hosp10_yr2012 dataset :

     region |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        251        4.03        4.03
          2 |        371        5.96        9.99
          3 |        473        7.60       17.58
          4 |      1,097       17.62       35.20
          5 |      1,017       16.33       51.53
          6 |      1,011       16.24       67.77
          7 |        514        8.25       76.02
          8 |        343        5.51       81.53
          9 |        567        9.11       90.64
         10 |        230        3.69       94.33
          . |        353        5.67      100.00
------------+-----------------------------------
      Total |      6,227      100.00

by Jean Roth , jroth@nber.org , 24 Aug 2018