Frequencies for first 10,000 rows of pct012d206 variable in sf12000860us19 dataset :

   99 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,951       99.51       99.51
          1 |         43        0.43       99.94
          2 |          4        0.04       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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