Frequencies for first 10,000 rows of pct012g056 variable in sf12000860us22 dataset :

   53 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,409       74.09       74.09
          1 |      1,307       13.07       87.16
          2 |        483        4.83       91.99
          3 |        246        2.46       94.45
          4 |        150        1.50       95.95
          5 |         92        0.92       96.87
          6 |         58        0.58       97.45
          7 |         45        0.45       97.90
          8 |         30        0.30       98.20
          9 |         30        0.30       98.50
         10 |         22        0.22       98.72
         11 |         12        0.12       98.84
         12 |         13        0.13       98.97
         13 |         15        0.15       99.12
         14 |         12        0.12       99.24
         15 |          9        0.09       99.33
         16 |          8        0.08       99.41
         17 |          5        0.05       99.46
         18 |          8        0.08       99.54
         19 |          8        0.08       99.62
         20 |          8        0.08       99.70
         21 |          7        0.07       99.77
         22 |          3        0.03       99.80
         23 |          4        0.04       99.84
         24 |          4        0.04       99.88
         25 |          3        0.03       99.91
         26 |          1        0.01       99.92
         27 |          1        0.01       99.93
         28 |          3        0.03       99.96
         29 |          1        0.01       99.97
         31 |          1        0.01       99.98
         36 |          1        0.01       99.99
         49 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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