Frequencies for first 10,000 rows of grtrc_psych_srvc_cd variable in pos2009 dataset :

       SRV: |
PSYCHIATRIC |
- GERIATRIC |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,638       86.38       86.38
          0 |      1,280       12.80       99.18
          1 |         58        0.58       99.76
          2 |         11        0.11       99.87
          3 |         13        0.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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