Frequencies for first 10,000 rows of pct012h204 variable in sf12010860us27 dataset :

   97 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,571       95.71       95.71
          1 |        244        2.44       98.15
          2 |         59        0.59       98.74
          3 |         28        0.28       99.02
          4 |         22        0.22       99.24
          5 |         20        0.20       99.44
          6 |          9        0.09       99.53
          7 |         14        0.14       99.67
          8 |          5        0.05       99.72
          9 |          7        0.07       99.79
         10 |          4        0.04       99.83
         11 |          3        0.03       99.86
         12 |          5        0.05       99.91
         13 |          3        0.03       99.94
         14 |          1        0.01       99.95
         17 |          1        0.01       99.96
         18 |          1        0.01       99.97
         19 |          1        0.01       99.98
         21 |          1        0.01       99.99
         23 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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