Frequencies for first 10,000 rows of pct012g100 variable in sf12000860us22 dataset :

   97 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,959       99.59       99.59
          1 |         36        0.36       99.95
          2 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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