Frequencies for first 10,000 rows of prov1535 variable in pos1993 dataset :

  organized |
     family |
      group |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,622       76.22       76.22
          N |      1,422       14.22       90.44
          Y |        956        9.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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