Frequencies for first 10,000 rows of pet_scan_srvc_cd variable in pos2012 datas

   Services |
  Provided: |
   PET Scan |
   Services |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,606       86.06       86.06
          0 |      1,282       12.82       98.88
          1 |         34        0.34       99.22
          2 |         61        0.61       99.83
          3 |         17        0.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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