Frequencies for first 10,000 rows of pct012g045 variable in sf12010860us26 dataset :

   42 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,620       66.20       66.20
          1 |      1,412       14.12       80.32
          2 |        608        6.08       86.40
          3 |        381        3.81       90.21
          4 |        244        2.44       92.65
          5 |        179        1.79       94.44
          6 |         95        0.95       95.39
          7 |         85        0.85       96.24
          8 |         77        0.77       97.01
          9 |         64        0.64       97.65
         10 |         42        0.42       98.07
         11 |         31        0.31       98.38
         12 |         22        0.22       98.60
         13 |          9        0.09       98.69
         14 |         20        0.20       98.89
         15 |         14        0.14       99.03
         16 |         11        0.11       99.14
         17 |         15        0.15       99.29
         18 |          7        0.07       99.36
         19 |          8        0.08       99.44
         20 |          6        0.06       99.50
         21 |         10        0.10       99.60
         22 |          8        0.08       99.68
         23 |          3        0.03       99.71
         24 |          5        0.05       99.76
         25 |          4        0.04       99.80
         27 |          3        0.03       99.83
         28 |          3        0.03       99.86
         29 |          3        0.03       99.89
         30 |          3        0.03       99.92
         31 |          1        0.01       99.93
         32 |          2        0.02       99.95
         34 |          1        0.01       99.96
         43 |          1        0.01       99.97
         48 |          1        0.01       99.98
         51 |          1        0.01       99.99
         52 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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