Frequencies for first 10,000 rows of pct012a103 variable in sf12010860us20 dataset :

 100 to 104 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,566       85.66       85.66
          1 |      1,001       10.01       95.67
          2 |        252        2.52       98.19
          3 |         99        0.99       99.18
          4 |         46        0.46       99.64
          5 |         18        0.18       99.82
          6 |         10        0.10       99.92
          7 |          2        0.02       99.94
          8 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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