Frequencies for first 10,000 rows of prov6160 variable in pos2006 dataset :

       srv: |
  audiology |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,710       87.10       87.10
          0 |      1,253       12.53       99.63
          1 |         17        0.17       99.80
          2 |         18        0.18       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016