Frequencies for first 10,000 rows of pct012g139 variable in sf12010860us26 dataset :

   32 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,479       64.79       64.79
          1 |      1,202       12.02       76.81
          2 |        589        5.89       82.70
          3 |        343        3.43       86.13
          4 |        264        2.64       88.77
          5 |        193        1.93       90.70
          6 |        166        1.66       92.36
          7 |        124        1.24       93.60
          8 |        100        1.00       94.60
          9 |         77        0.77       95.37
         10 |         66        0.66       96.03
         11 |         53        0.53       96.56
         12 |         41        0.41       96.97
         13 |         47        0.47       97.44
         14 |         29        0.29       97.73
         15 |         33        0.33       98.06
         16 |         30        0.30       98.36
         17 |         22        0.22       98.58
         18 |         14        0.14       98.72
         19 |         19        0.19       98.91
         20 |         10        0.10       99.01
         21 |         13        0.13       99.14
         22 |         11        0.11       99.25
         23 |          7        0.07       99.32
         24 |         10        0.10       99.42
         25 |          1        0.01       99.43
         26 |          6        0.06       99.49
         27 |          3        0.03       99.52
         28 |          4        0.04       99.56
         29 |          5        0.05       99.61
         30 |          4        0.04       99.65
         31 |          3        0.03       99.68
         32 |          5        0.05       99.73
         33 |          2        0.02       99.75
         34 |          1        0.01       99.76
         35 |          3        0.03       99.79
         36 |          5        0.05       99.84
         37 |          4        0.04       99.88
         39 |          1        0.01       99.89
         40 |          5        0.05       99.94
         41 |          1        0.01       99.95
         43 |          1        0.01       99.96
         46 |          3        0.03       99.99
         53 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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