Frequencies for first 10,000 rows of pct012g034 variable in sf12000860us22 dataset :

   31 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,986       69.86       69.86
          1 |      1,178       11.78       81.64
          2 |        501        5.01       86.65
          3 |        310        3.10       89.75
          4 |        210        2.10       91.85
          5 |        134        1.34       93.19
          6 |        106        1.06       94.25
          7 |         74        0.74       94.99
          8 |         69        0.69       95.68
          9 |         58        0.58       96.26
         10 |         37        0.37       96.63
         11 |         38        0.38       97.01
         12 |         21        0.21       97.22
         13 |         29        0.29       97.51
         14 |         23        0.23       97.74
         15 |         21        0.21       97.95
         16 |         20        0.20       98.15
         17 |         23        0.23       98.38
         18 |         12        0.12       98.50
         19 |         16        0.16       98.66
         20 |         12        0.12       98.78
         21 |          9        0.09       98.87
         22 |         11        0.11       98.98
         23 |          9        0.09       99.07
         24 |          6        0.06       99.13
         25 |          7        0.07       99.20
         26 |          2        0.02       99.22
         27 |          5        0.05       99.27
         28 |          5        0.05       99.32
         29 |          5        0.05       99.37
         30 |          5        0.05       99.42
         31 |          6        0.06       99.48
         32 |          7        0.07       99.55
         33 |          2        0.02       99.57
         34 |          2        0.02       99.59
         35 |          2        0.02       99.61
         36 |          2        0.02       99.63
         37 |          1        0.01       99.64
         38 |          2        0.02       99.66
         39 |          2        0.02       99.68
         40 |          2        0.02       99.70
         41 |          1        0.01       99.71
         42 |          2        0.02       99.73
         43 |          3        0.03       99.76
         44 |          2        0.02       99.78
         45 |          2        0.02       99.80
         46 |          4        0.04       99.84
         51 |          2        0.02       99.86
         52 |          2        0.02       99.88
         53 |          2        0.02       99.90
         55 |          1        0.01       99.91
         56 |          1        0.01       99.92
         57 |          1        0.01       99.93
         62 |          2        0.02       99.95
         77 |          1        0.01       99.96
         78 |          1        0.01       99.97
         79 |          1        0.01       99.98
        110 |          1        0.01       99.99
        115 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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