Frequencies for first 10,000 rows of prov6160 variable in pos2007 dataset :

       srv: |
  audiology |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,682       86.82       86.82
          0 |      1,258       12.58       99.40
          1 |         23        0.23       99.63
          2 |         32        0.32       99.95
          3 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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