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

   Services |
  Provided: |
Chemotherap |
          y |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,606       86.06       86.06
          0 |      1,200       12.00       98.06
          1 |        162        1.62       99.68
          2 |         16        0.16       99.84
          3 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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