Frequencies for first 10,000 rows of op_srgry_unit_srvc_cd variable in pos2015 

  Services: |
 Outpatient |
    Surgery |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,580       85.80       85.80
          0 |        618        6.18       91.98
          1 |        693        6.93       98.91
          2 |         38        0.38       99.29
          3 |         71        0.71      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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