Frequencies for first 10,000 rows of prov1540 variable in pos1996 dataset :

  organized |
   resident |
      group |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,144       81.44       81.44
          Y |      1,856       18.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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