Frequencies for first 10,000 rows of psych_srvc_cd variable in pos2005 dataset :

       srv: |
psychiatric |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,731       87.31       87.31
          0 |        764        7.64       94.95
          1 |        359        3.59       98.54
          2 |         90        0.90       99.44
          3 |         56        0.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017