Frequencies for first 10,000 rows of prov1535 variable in pos1992 dataset :

  organized |
     family |
      group |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,366       73.66       73.66
          N |      1,537       15.37       89.03
          Y |      1,097       10.97      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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