Frequencies for first 10,000 rows of pct012d071 variable in sf12010880us23 dataset :

   68 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,007       80.07       80.07
          1 |        717        7.17       87.24
          2 |        343        3.43       90.67
          3 |        230        2.30       92.97
          4 |        151        1.51       94.48
          5 |         98        0.98       95.46
          6 |         74        0.74       96.20
          7 |         61        0.61       96.81
          8 |         44        0.44       97.25
          9 |         23        0.23       97.48
         10 |         22        0.22       97.70
         11 |         19        0.19       97.89
         12 |         21        0.21       98.10
         13 |         27        0.27       98.37
         14 |         12        0.12       98.49
         15 |         16        0.16       98.65
         16 |         17        0.17       98.82
         17 |         11        0.11       98.93
         18 |         13        0.13       99.06
         19 |         11        0.11       99.17
         20 |          9        0.09       99.26
         21 |          3        0.03       99.29
         22 |          5        0.05       99.34
         23 |          2        0.02       99.36
         24 |          4        0.04       99.40
         25 |          5        0.05       99.45
         26 |          4        0.04       99.49
         27 |          3        0.03       99.52
         28 |          4        0.04       99.56
         29 |          3        0.03       99.59
         30 |          4        0.04       99.63
         31 |          3        0.03       99.66
         33 |          2        0.02       99.68
         34 |          2        0.02       99.70
         36 |          1        0.01       99.71
         37 |          1        0.01       99.72
         38 |          2        0.02       99.74
         39 |          3        0.03       99.77
         42 |          1        0.01       99.78
         43 |          1        0.01       99.79
         45 |          3        0.03       99.82
         48 |          2        0.02       99.84
         49 |          1        0.01       99.85
         50 |          1        0.01       99.86
         51 |          2        0.02       99.88
         54 |          1        0.01       99.89
         64 |          2        0.02       99.91
         66 |          1        0.01       99.92
         76 |          1        0.01       99.93
         77 |          1        0.01       99.94
         84 |          1        0.01       99.95
         89 |          1        0.01       99.96
        125 |          1        0.01       99.97
        139 |          1        0.01       99.98
        143 |          1        0.01       99.99
        152 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017