Frequencies for first 10,000 rows of pct012j087 variable in sf12000860us25 dataset :

   84 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,134       81.34       81.34
          1 |        805        8.05       89.39
          2 |        374        3.74       93.13
          3 |        206        2.06       95.19
          4 |        114        1.14       96.33
          5 |         78        0.78       97.11
          6 |         39        0.39       97.50
          7 |         42        0.42       97.92
          8 |         39        0.39       98.31
          9 |         18        0.18       98.49
         10 |         15        0.15       98.64
         11 |         18        0.18       98.82
         12 |         13        0.13       98.95
         13 |         14        0.14       99.09
         14 |          7        0.07       99.16
         15 |         11        0.11       99.27
         16 |          6        0.06       99.33
         17 |         10        0.10       99.43
         18 |          6        0.06       99.49
         19 |          2        0.02       99.51
         20 |          3        0.03       99.54
         21 |         13        0.13       99.67
         22 |          3        0.03       99.70
         23 |          4        0.04       99.74
         24 |          1        0.01       99.75
         25 |          1        0.01       99.76
         26 |          3        0.03       99.79
         27 |          4        0.04       99.83
         28 |          2        0.02       99.85
         29 |          2        0.02       99.87
         30 |          1        0.01       99.88
         31 |          2        0.02       99.90
         32 |          1        0.01       99.91
         33 |          1        0.01       99.92
         34 |          3        0.03       99.95
         35 |          1        0.01       99.96
         40 |          2        0.02       99.98
         54 |          1        0.01       99.99
         72 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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