Frequencies for first 10,000 rows of plstc_srgry_sw variable in pos2009 dataset :

      SPEC: |
    PLASTIC |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,644       96.44       96.44
          N |        198        1.98       98.42
          Y |        158        1.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017