Frequencies for first 10,000 rows of pct012h204 variable in sf12000860us23 dataset :

   97 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,725       97.25       97.25
          1 |        141        1.41       98.66
          2 |         43        0.43       99.09
          3 |         35        0.35       99.44
          4 |         24        0.24       99.68
          5 |          8        0.08       99.76
          6 |          6        0.06       99.82
          7 |          4        0.04       99.86
          8 |          5        0.05       99.91
          9 |          3        0.03       99.94
         11 |          3        0.03       99.97
         13 |          2        0.02       99.99
         21 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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