Frequencies for first 10,000 rows of nrsrgcl_srvc_cd variable in pos2012 datase

   Services |
  Provided: |
Neurosurgic |
al Services |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,606       86.06       86.06
          0 |      1,248       12.48       98.54
          1 |        101        1.01       99.55
          2 |         26        0.26       99.81
          3 |         19        0.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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