Frequencies for first 10,000 rows of ip_srgcl_srvc_cd variable in pos2003 dataset :

       srv: |
  inpatient |
   surgical |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,789       87.89       87.89
          0 |        410        4.10       91.99
          1 |        742        7.42       99.41
          2 |         38        0.38       99.79
          3 |         21        0.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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