Frequencies for first 10,000 rows of prov2115 variable in pos1991 dataset :

       srv: |
 counseling |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,831       98.31       98.31
          0 |          1        0.01       98.32
          1 |        167        1.67       99.99
          2 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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