Frequencies for first 10,000 rows of prov2400 variable in pos1993 dataset :

      spec: |
    plastic |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,608       96.08       96.08
          N |        173        1.73       97.81
          Y |        219        2.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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