Frequencies for first 10,000 rows of prov2360 variable in pos2001 dataset :

       srv: |
  pediatric |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,837       88.37       88.37
          0 |        583        5.83       94.20
          1 |        537        5.37       99.57
          2 |         31        0.31       99.88
          3 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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