Frequencies for first 10,000 rows of pct013g008 variable in sf12010860us36 dataset :

   20 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,064       60.64       60.64
          1 |      1,409       14.09       74.73
          2 |        659        6.59       81.32
          3 |        369        3.69       85.01
          4 |        302        3.02       88.03
          5 |        219        2.19       90.22
          6 |        146        1.46       91.68
          7 |        136        1.36       93.04
          8 |        118        1.18       94.22
          9 |         88        0.88       95.10
         10 |         91        0.91       96.01
         11 |         58        0.58       96.59
         12 |         42        0.42       97.01
         13 |         37        0.37       97.38
         14 |         40        0.40       97.78
         15 |         30        0.30       98.08
         16 |         18        0.18       98.26
         17 |         19        0.19       98.45
         18 |         25        0.25       98.70
         19 |          7        0.07       98.77
         20 |         20        0.20       98.97
         21 |         10        0.10       99.07
         22 |          6        0.06       99.13
         23 |         11        0.11       99.24
         24 |          8        0.08       99.32
         25 |          8        0.08       99.40
         26 |         10        0.10       99.50
         27 |          4        0.04       99.54
         28 |          3        0.03       99.57
         29 |          3        0.03       99.60
         30 |          2        0.02       99.62
         31 |          1        0.01       99.63
         32 |          2        0.02       99.65
         33 |          6        0.06       99.71
         34 |          2        0.02       99.73
         35 |          3        0.03       99.76
         36 |          1        0.01       99.77
         37 |          1        0.01       99.78
         38 |          3        0.03       99.81
         39 |          1        0.01       99.82
         41 |          3        0.03       99.85
         43 |          2        0.02       99.87
         44 |          2        0.02       99.89
         45 |          2        0.02       99.91
         46 |          1        0.01       99.92
         48 |          1        0.01       99.93
         51 |          1        0.01       99.94
         52 |          1        0.01       99.95
         55 |          1        0.01       99.96
         56 |          1        0.01       99.97
         57 |          2        0.02       99.99
         61 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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