Frequencies for first 10,000 rows of psych_srvc_cd variable in pos2002 dataset :

       srv: |
psychiatric |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,812       88.12       88.12
          0 |        686        6.86       94.98
          1 |        353        3.53       98.51
          2 |         87        0.87       99.38
          3 |         62        0.62      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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