Frequencies for first 10,000 rows of prov1575 variable in pos2007 dataset :

participati |
    ng code |
      (y,n) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,604       86.04       86.04
          N |         89        0.89       86.93
          Y |      1,307       13.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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