Frequencies for first 10,000 rows of prvdr_ctgry_cd variable in pos2009 dataset :

CATEGORY OF |
PROVIDER/SU |
     PPLIER |      Freq.     Percent        Cum.
------------+-----------------------------------
         01 |      1,440       14.40       14.40
         02 |      1,353       13.53       27.93
         03 |        198        1.98       29.91
         04 |        146        1.46       31.37
         05 |      1,795       17.95       49.32
         07 |         64        0.64       49.96
         08 |        660        6.60       56.56
         09 |        892        8.92       65.48
         10 |        646        6.46       71.94
         11 |         72        0.72       72.66
         12 |        606        6.06       78.72
         14 |        140        1.40       80.12
         15 |        356        3.56       83.68
         16 |        640        6.40       90.08
         17 |          3        0.03       90.11
         19 |        302        3.02       93.13
         21 |        687        6.87      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017