Frequencies for region variable in prds_hosp10_yr2013 dataset :

     region |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        255        4.08        4.08
          2 |        370        5.92       10.00
          3 |        471        7.54       17.54
          4 |      1,075       17.21       34.75
          5 |      1,019       16.31       51.06
          6 |      1,007       16.12       67.17
          7 |        501        8.02       75.19
          8 |        348        5.57       80.76
          9 |        559        8.95       89.71
         10 |        234        3.75       93.45
          . |        409        6.55      100.00
------------+-----------------------------------
      Total |      6,248      100.00

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