Frequencies for first 10,000 rows of pct012g020 variable in sf12000860us22 dataset :

   17 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,279       62.79       62.79
          1 |      1,404       14.04       76.83
          2 |        662        6.62       83.45
          3 |        393        3.93       87.38
          4 |        283        2.83       90.21
          5 |        178        1.78       91.99
          6 |        133        1.33       93.32
          7 |         97        0.97       94.29
          8 |        101        1.01       95.30
          9 |         63        0.63       95.93
         10 |         55        0.55       96.48
         11 |         46        0.46       96.94
         12 |         37        0.37       97.31
         13 |         22        0.22       97.53
         14 |         26        0.26       97.79
         15 |         22        0.22       98.01
         16 |         25        0.25       98.26
         17 |         23        0.23       98.49
         18 |         11        0.11       98.60
         19 |          9        0.09       98.69
         20 |         14        0.14       98.83
         21 |          9        0.09       98.92
         22 |         10        0.10       99.02
         23 |          6        0.06       99.08
         24 |          8        0.08       99.16
         25 |          6        0.06       99.22
         26 |          6        0.06       99.28
         27 |          9        0.09       99.37
         28 |          2        0.02       99.39
         29 |          6        0.06       99.45
         30 |          5        0.05       99.50
         31 |          7        0.07       99.57
         32 |          4        0.04       99.61
         33 |          4        0.04       99.65
         34 |          2        0.02       99.67
         35 |          4        0.04       99.71
         37 |          3        0.03       99.74
         39 |          3        0.03       99.77
         40 |          1        0.01       99.78
         41 |          2        0.02       99.80
         42 |          2        0.02       99.82
         43 |          6        0.06       99.88
         44 |          4        0.04       99.92
         45 |          1        0.01       99.93
         47 |          1        0.01       99.94
         50 |          2        0.02       99.96
         56 |          1        0.01       99.97
         67 |          1        0.01       99.98
         80 |          1        0.01       99.99
         88 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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