Frequencies for first 10,000 rows of psych_srvc_cd variable in pos2010 dataset :

       SRV: |
PSYCHIATRIC |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,626       86.26       86.26
          0 |        874        8.74       95.00
          1 |        368        3.68       98.68
          2 |         81        0.81       99.49
          3 |         51        0.51      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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