Frequencies for first 10,000 rows of prvdr_ctgry_cd variable in pos2011 dataset :

   Provider |
   Category |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
         01 |      1,473       14.73       14.73
         02 |      1,384       13.84       28.57
         03 |        187        1.87       30.44
         04 |        151        1.51       31.95
         05 |      1,300       13.00       44.95
         06 |         17        0.17       45.12
         07 |         73        0.73       45.85
         08 |        668        6.68       52.53
         09 |        916        9.16       61.69
         10 |        657        6.57       68.26
         11 |         72        0.72       68.98
         12 |        636        6.36       75.34
         14 |        142        1.42       76.76
         15 |        379        3.79       80.55
         16 |        658        6.58       87.13
         17 |          3        0.03       87.16
         18 |        242        2.42       89.58
         19 |        303        3.03       92.61
         21 |        739        7.39      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Apr 2019