Frequencies for first 10,000 rows of prov6250 variable in pos2006 dataset :

       srv: |
psychiatric |
- geriatric |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,710       87.10       87.10
          0 |      1,262       12.62       99.72
          1 |         22        0.22       99.94
          2 |          1        0.01       99.95
          3 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016