Frequencies for first 10,000 rows of prov6160 variable in pos2009 dataset :

       SRV: |
  AUDIOLOGY |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,638       86.38       86.38
          0 |      1,256       12.56       98.94
          1 |         46        0.46       99.40
          2 |         51        0.51       99.91
          3 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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