Frequencies for first 10,000 rows of pct012j101 variable in sf12000860us25 dataset :

   98 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,781       97.81       97.81
          1 |        178        1.78       99.59
          2 |         32        0.32       99.91
          3 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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