Frequencies for first 10,000 rows of pct012d202 variable in sf12000860us19 dataset :

   95 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,874       98.74       98.74
          1 |        107        1.07       99.81
          2 |         12        0.12       99.93
          3 |          3        0.03       99.96
          4 |          2        0.02       99.98
          9 |          1        0.01       99.99
         10 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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