Frequencies for first 10,000 rows of pct012g139 variable in sf12010880us26 dataset :

   32 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,123       71.23       71.23
          1 |      1,036       10.36       81.59
          2 |        483        4.83       86.42
          3 |        260        2.60       89.02
          4 |        196        1.96       90.98
          5 |        152        1.52       92.50
          6 |        130        1.30       93.80
          7 |         95        0.95       94.75
          8 |         73        0.73       95.48
          9 |         51        0.51       95.99
         10 |         56        0.56       96.55
         11 |         43        0.43       96.98
         12 |         36        0.36       97.34
         13 |         40        0.40       97.74
         14 |         22        0.22       97.96
         15 |         26        0.26       98.22
         16 |         25        0.25       98.47
         17 |         18        0.18       98.65
         18 |         13        0.13       98.78
         19 |         19        0.19       98.97
         20 |          8        0.08       99.05
         21 |         12        0.12       99.17
         22 |         10        0.10       99.27
         23 |          7        0.07       99.34
         24 |          9        0.09       99.43
         25 |          1        0.01       99.44
         26 |          6        0.06       99.50
         27 |          4        0.04       99.54
         28 |          4        0.04       99.58
         29 |          5        0.05       99.63
         30 |          4        0.04       99.67
         31 |          3        0.03       99.70
         32 |          4        0.04       99.74
         33 |          2        0.02       99.76
         34 |          2        0.02       99.78
         35 |          2        0.02       99.80
         36 |          5        0.05       99.85
         37 |          4        0.04       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 , 8 May 2017