Frequencies for first 10,000 rows of prov2415 variable in pos1998 dataset :

       srv: |
psychiatric |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,805       88.05       88.05
          0 |        666        6.66       94.71
          1 |        377        3.77       98.48
          2 |        104        1.04       99.52
          3 |         48        0.48      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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