Frequencies for first 10,000 rows of prov6160 variable in pos2008 dataset :

       srv: |
  audiology |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,655       86.55       86.55
          0 |      1,268       12.68       99.23
          1 |         31        0.31       99.54
          2 |         40        0.40       99.94
          3 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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