Frequencies for first 10,000 rows of pct012g139 variable in sf12000860us22 dataset :

   32 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,992       69.92       69.92
          1 |      1,178       11.78       81.70
          2 |        494        4.94       86.64
          3 |        310        3.10       89.74
          4 |        206        2.06       91.80
          5 |        157        1.57       93.37
          6 |         96        0.96       94.33
          7 |         81        0.81       95.14
          8 |         58        0.58       95.72
          9 |         55        0.55       96.27
         10 |         41        0.41       96.68
         11 |         34        0.34       97.02
         12 |         35        0.35       97.37
         13 |         33        0.33       97.70
         14 |         24        0.24       97.94
         15 |         19        0.19       98.13
         16 |         14        0.14       98.27
         17 |         15        0.15       98.42
         18 |         13        0.13       98.55
         19 |         12        0.12       98.67
         20 |         15        0.15       98.82
         21 |          8        0.08       98.90
         22 |          8        0.08       98.98
         23 |          9        0.09       99.07
         24 |          9        0.09       99.16
         25 |          5        0.05       99.21
         26 |          3        0.03       99.24
         27 |          3        0.03       99.27
         28 |          6        0.06       99.33
         29 |          3        0.03       99.36
         31 |          5        0.05       99.41
         32 |          1        0.01       99.42
         33 |          3        0.03       99.45
         34 |          4        0.04       99.49
         35 |          6        0.06       99.55
         36 |          5        0.05       99.60
         37 |          5        0.05       99.65
         38 |          4        0.04       99.69
         41 |          3        0.03       99.72
         42 |          3        0.03       99.75
         43 |          2        0.02       99.77
         46 |          3        0.03       99.80
         47 |          3        0.03       99.83
         48 |          1        0.01       99.84
         49 |          6        0.06       99.90
         50 |          3        0.03       99.93
         53 |          1        0.01       99.94
         54 |          2        0.02       99.96
         59 |          1        0.01       99.97
         61 |          1        0.01       99.98
         68 |          1        0.01       99.99
        101 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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