Frequencies for first 10,000 rows of pct012g135 variable in sf12000860us22 dataset :

   28 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,967       69.67       69.67
          1 |      1,169       11.69       81.36
          2 |        499        4.99       86.35
          3 |        285        2.85       89.20
          4 |        213        2.13       91.33
          5 |        151        1.51       92.84
          6 |        105        1.05       93.89
          7 |         84        0.84       94.73
          8 |         67        0.67       95.40
          9 |         53        0.53       95.93
         10 |         50        0.50       96.43
         11 |         35        0.35       96.78
         12 |         34        0.34       97.12
         13 |         32        0.32       97.44
         14 |         22        0.22       97.66
         15 |         25        0.25       97.91
         16 |         23        0.23       98.14
         17 |         16        0.16       98.30
         18 |         11        0.11       98.41
         19 |         12        0.12       98.53
         20 |          8        0.08       98.61
         21 |         12        0.12       98.73
         22 |         11        0.11       98.84
         23 |         12        0.12       98.96
         24 |         10        0.10       99.06
         25 |          8        0.08       99.14
         26 |          7        0.07       99.21
         27 |          7        0.07       99.28
         28 |          8        0.08       99.36
         29 |          4        0.04       99.40
         30 |          3        0.03       99.43
         31 |          3        0.03       99.46
         32 |          2        0.02       99.48
         33 |          1        0.01       99.49
         34 |          4        0.04       99.53
         35 |          4        0.04       99.57
         36 |          1        0.01       99.58
         37 |          2        0.02       99.60
         38 |          3        0.03       99.63
         40 |          4        0.04       99.67
         41 |          5        0.05       99.72
         42 |          5        0.05       99.77
         43 |          3        0.03       99.80
         44 |          3        0.03       99.83
         45 |          4        0.04       99.87
         46 |          1        0.01       99.88
         48 |          2        0.02       99.90
         49 |          1        0.01       99.91
         50 |          1        0.01       99.92
         51 |          1        0.01       99.93
         55 |          2        0.02       99.95
         56 |          2        0.02       99.97
         60 |          1        0.01       99.98
         80 |          1        0.01       99.99
         81 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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