Frequencies for first 10,000 rows of ped_srvc_cd variable in pos1992 dataset :

       srv: |
  pediatric |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,851       88.51       88.51
          0 |        541        5.41       93.92
          1 |        563        5.63       99.55
          2 |         34        0.34       99.89
          3 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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