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

   Provider |
   Category |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
         01 |      1,538       15.38       15.38
         02 |      1,446       14.46       29.84
         03 |        157        1.57       31.41
         04 |        158        1.58       32.99
         05 |      1,079       10.79       43.78
         06 |         21        0.21       43.99
         07 |         86        0.86       44.85
         08 |        385        3.85       48.70
         09 |      1,009       10.09       58.79
         10 |        669        6.69       65.48
         11 |         75        0.75       66.23
         12 |        768        7.68       73.91
         14 |        145        1.45       75.36
         15 |        451        4.51       79.87
         16 |        757        7.57       87.44
         17 |          3        0.03       87.47
         19 |        306        3.06       90.53
         21 |        947        9.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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