Frequencies for first 10,000 rows of prov2360 variable in pos2004 dataset :

       srv: |
  pediatric |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,766       87.66       87.66
          0 |        641        6.41       94.07
          1 |        545        5.45       99.52
          2 |         32        0.32       99.84
          3 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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