Frequencies for first 10,000 rows of prvdr_ctgry_sbtyp_cd variable in pos2018 dataset :

   Provider |
   Category |
    Subtype |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |         90        0.90        0.90
          1 |      7,122       71.22       72.12
         11 |        106        1.06       73.18
          2 |        805        8.05       81.23
         20 |         10        0.10       81.33
          3 |      1,608       16.08       97.41
          4 |        189        1.89       99.30
          5 |         51        0.51       99.81
          6 |         19        0.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Feb 2019