Frequencies for first 10,000 rows of prov2415 variable in pos2001 dataset :

       srv: |
psychiatric |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,837       88.37       88.37
          0 |        667        6.67       95.04
          1 |        352        3.52       98.56
          2 |         89        0.89       99.45
          3 |         55        0.55      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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