Frequencies for first 10,000 rows of ped_srvc_cd variable in pos1994 dataset :

       srv: |
  pediatric |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,940       89.40       89.40
          0 |        515        5.15       94.55
          1 |        509        5.09       99.64
          2 |         28        0.28       99.92
          3 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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