Frequencies for first 10,000 rows of prov6255 variable in pos2009 dataset :

       SRV: |
PSYCHIATRIC |
          - |
 OUTPATIENT |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,638       86.38       86.38
          0 |      1,279       12.79       99.17
          1 |         61        0.61       99.78
          2 |         14        0.14       99.92
          3 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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