Frequencies for first 10,000 rows of ped_srvc_cd variable in pos2013 dataset :

  Services: |
  Pediatric |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,601       86.01       86.01
          0 |        769        7.69       93.70
          1 |        553        5.53       99.23
          2 |         36        0.36       99.59
          3 |         41        0.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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