Frequencies for first 10,000 rows of pct012g125 variable in sf12000860us22 dataset :

   18 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,503       65.03       65.03
          1 |      1,324       13.24       78.27
          2 |        608        6.08       84.35
          3 |        321        3.21       87.56
          4 |        248        2.48       90.04
          5 |        174        1.74       91.78
          6 |        135        1.35       93.13
          7 |         99        0.99       94.12
          8 |         82        0.82       94.94
          9 |         78        0.78       95.72
         10 |         39        0.39       96.11
         11 |         46        0.46       96.57
         12 |         31        0.31       96.88
         13 |         38        0.38       97.26
         14 |         38        0.38       97.64
         15 |         23        0.23       97.87
         16 |         23        0.23       98.10
         17 |         24        0.24       98.34
         18 |         15        0.15       98.49
         19 |         12        0.12       98.61
         20 |          4        0.04       98.65
         21 |         10        0.10       98.75
         22 |          6        0.06       98.81
         23 |         12        0.12       98.93
         24 |         12        0.12       99.05
         25 |         12        0.12       99.17
         26 |          7        0.07       99.24
         27 |          5        0.05       99.29
         28 |          6        0.06       99.35
         29 |          9        0.09       99.44
         30 |          7        0.07       99.51
         31 |          2        0.02       99.53
         32 |          5        0.05       99.58
         33 |          2        0.02       99.60
         34 |          4        0.04       99.64
         35 |          2        0.02       99.66
         36 |          3        0.03       99.69
         37 |          4        0.04       99.73
         38 |          1        0.01       99.74
         39 |          6        0.06       99.80
         40 |          3        0.03       99.83
         41 |          4        0.04       99.87
         42 |          2        0.02       99.89
         43 |          1        0.01       99.90
         44 |          3        0.03       99.93
         47 |          2        0.02       99.95
         49 |          1        0.01       99.96
         50 |          1        0.01       99.97
         56 |          1        0.01       99.98
         64 |          1        0.01       99.99
         96 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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