Frequencies for first 10,000 rows of pct012a102 variable in sf12010880us20 dataset :

   99 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,947       89.47       89.47
          1 |        770        7.70       97.17
          2 |        182        1.82       98.99
          3 |         58        0.58       99.57
          4 |         24        0.24       99.81
          5 |         13        0.13       99.94
          6 |          4        0.04       99.98
          7 |          1        0.01       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017