Frequencies for first 10,000 rows of prov6160 variable in pos2005 dataset :

       srv: |
  audiology |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,731       87.31       87.31
          0 |      1,260       12.60       99.91
          1 |          4        0.04       99.95
          2 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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