Frequencies for first 10,000 rows of pct012g036 variable in sf12000860us22 dataset :

   33 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,953       69.53       69.53
          1 |      1,197       11.97       81.50
          2 |        507        5.07       86.57
          3 |        319        3.19       89.76
          4 |        211        2.11       91.87
          5 |        148        1.48       93.35
          6 |        104        1.04       94.39
          7 |         83        0.83       95.22
          8 |         62        0.62       95.84
          9 |         61        0.61       96.45
         10 |         36        0.36       96.81
         11 |         27        0.27       97.08
         12 |         27        0.27       97.35
         13 |         34        0.34       97.69
         14 |         24        0.24       97.93
         15 |         19        0.19       98.12
         16 |         15        0.15       98.27
         17 |         14        0.14       98.41
         18 |         21        0.21       98.62
         19 |         11        0.11       98.73
         20 |         11        0.11       98.84
         21 |          7        0.07       98.91
         22 |          7        0.07       98.98
         23 |         10        0.10       99.08
         24 |          4        0.04       99.12
         25 |          7        0.07       99.19
         26 |         10        0.10       99.29
         27 |          6        0.06       99.35
         28 |          3        0.03       99.38
         29 |          6        0.06       99.44
         30 |          1        0.01       99.45
         31 |          5        0.05       99.50
         32 |          5        0.05       99.55
         33 |          2        0.02       99.57
         34 |          3        0.03       99.60
         35 |          2        0.02       99.62
         36 |          2        0.02       99.64
         37 |          1        0.01       99.65
         38 |          1        0.01       99.66
         39 |          2        0.02       99.68
         40 |          2        0.02       99.70
         41 |          1        0.01       99.71
         42 |          6        0.06       99.77
         43 |          1        0.01       99.78
         44 |          2        0.02       99.80
         46 |          1        0.01       99.81
         47 |          2        0.02       99.83
         48 |          2        0.02       99.85
         51 |          2        0.02       99.87
         52 |          1        0.01       99.88
         53 |          2        0.02       99.90
         54 |          1        0.01       99.91
         57 |          1        0.01       99.92
         63 |          1        0.01       99.93
         64 |          2        0.02       99.95
         67 |          1        0.01       99.96
         90 |          2        0.02       99.98
         94 |          1        0.01       99.99
        104 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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