Frequencies for first 10,000 rows of prov2415 variable in pos1999 dataset :

       srv: |
psychiatric |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,885       88.85       88.85
          0 |        624        6.24       95.09
          1 |        351        3.51       98.60
          2 |         91        0.91       99.51
          3 |         49        0.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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