Frequencies for first 10,000 rows of prov2415 variable in pos2004 dataset :

       srv: |
psychiatric |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,766       87.66       87.66
          0 |        728        7.28       94.94
          1 |        359        3.59       98.53
          2 |         88        0.88       99.41
          3 |         59        0.59      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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