Frequencies for first 10,000 rows of ip_srgcl_srvc_cd variable in pos2011 dataset :

   Services |
  Provided: |
  Inpatient |
   Surgical |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,614       86.14       86.14
          0 |        484        4.84       90.98
          1 |        817        8.17       99.15
          2 |         48        0.48       99.63
          3 |         37        0.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Apr 2019