Frequencies for first 10,000 rows of prov1575 variable in pos1992 dataset :

participati |
    ng code |
      (y,n) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,738       87.38       87.38
          N |        107        1.07       88.45
          Y |      1,155       11.55      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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