Frequencies for first 10,000 rows of ped_srvc_cd variable in pos2018 dataset :

  Services: |
  Pediatric |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,560       85.60       85.60
          0 |        822        8.22       93.82
          1 |        534        5.34       99.16
          2 |         31        0.31       99.47
          3 |         53        0.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Feb 2019