Frequencies for first 10,000 rows of pct012o024 variable in sf12010860us34 dataset :

   21 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,461       64.61       64.61
          1 |      1,413       14.13       78.74
          2 |        640        6.40       85.14
          3 |        421        4.21       89.35
          4 |        239        2.39       91.74
          5 |        203        2.03       93.77
          6 |        136        1.36       95.13
          7 |         86        0.86       95.99
          8 |         78        0.78       96.77
          9 |         61        0.61       97.38
         10 |         57        0.57       97.95
         11 |         49        0.49       98.44
         12 |         23        0.23       98.67
         13 |         24        0.24       98.91
         14 |          7        0.07       98.98
         15 |         12        0.12       99.10
         16 |          7        0.07       99.17
         17 |         15        0.15       99.32
         18 |          8        0.08       99.40
         19 |          1        0.01       99.41
         20 |          3        0.03       99.44
         21 |          7        0.07       99.51
         22 |          3        0.03       99.54
         23 |          3        0.03       99.57
         24 |          4        0.04       99.61
         25 |          1        0.01       99.62
         26 |          4        0.04       99.66
         27 |          2        0.02       99.68
         28 |          7        0.07       99.75
         29 |          3        0.03       99.78
         30 |          2        0.02       99.80
         31 |          3        0.03       99.83
         32 |          2        0.02       99.85
         34 |          1        0.01       99.86
         35 |          2        0.02       99.88
         36 |          1        0.01       99.89
         41 |          1        0.01       99.90
         42 |          2        0.02       99.92
         46 |          1        0.01       99.93
         49 |          1        0.01       99.94
         56 |          1        0.01       99.95
         57 |          1        0.01       99.96
         61 |          1        0.01       99.97
         62 |          2        0.02       99.99
         80 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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