Frequencies for first 10,000 rows of pct012j090 variable in sf12000860us25 dataset :

   87 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,447       84.47       84.47
          1 |        783        7.83       92.30
          2 |        298        2.98       95.28
          3 |        152        1.52       96.80
          4 |         99        0.99       97.79
          5 |         47        0.47       98.26
          6 |         38        0.38       98.64
          7 |         23        0.23       98.87
          8 |         15        0.15       99.02
          9 |         20        0.20       99.22
         10 |         18        0.18       99.40
         11 |         11        0.11       99.51
         12 |          8        0.08       99.59
         13 |          8        0.08       99.67
         14 |          6        0.06       99.73
         15 |          2        0.02       99.75
         16 |          4        0.04       99.79
         17 |          4        0.04       99.83
         19 |          1        0.01       99.84
         20 |          2        0.02       99.86
         21 |          2        0.02       99.88
         22 |          1        0.01       99.89
         23 |          1        0.01       99.90
         24 |          2        0.02       99.92
         25 |          1        0.01       99.93
         27 |          1        0.01       99.94
         28 |          1        0.01       99.95
         30 |          1        0.01       99.96
         32 |          1        0.01       99.97
         34 |          1        0.01       99.98
         35 |          1        0.01       99.99
         41 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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