Frequencies for first 10,000 rows of prov1540 variable in pos1998 dataset :

  organized |
   resident |
      group |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,285       82.85       82.85
          Y |      1,715       17.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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