Frequencies for first 10,000 rows of pct012d084 variable in sf12000860us19 dataset :

   81 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,309       93.09       93.09
          1 |        438        4.38       97.47
          2 |        128        1.28       98.75
          3 |         53        0.53       99.28
          4 |         23        0.23       99.51
          5 |         12        0.12       99.63
          6 |          7        0.07       99.70
          7 |          5        0.05       99.75
          8 |          4        0.04       99.79
          9 |          4        0.04       99.83
         10 |          5        0.05       99.88
         11 |          3        0.03       99.91
         14 |          3        0.03       99.94
         17 |          1        0.01       99.95
         27 |          1        0.01       99.96
         29 |          1        0.01       99.97
         32 |          1        0.01       99.98
         38 |          1        0.01       99.99
         63 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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