Frequencies for first 10,000 rows of pct012j084 variable in sf12000860us25 dataset :

   81 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,651       76.51       76.51
          1 |        885        8.85       85.36
          2 |        475        4.75       90.11
          3 |        237        2.37       92.48
          4 |        162        1.62       94.10
          5 |        110        1.10       95.20
          6 |         76        0.76       95.96
          7 |         67        0.67       96.63
          8 |         38        0.38       97.01
          9 |         37        0.37       97.38
         10 |         38        0.38       97.76
         11 |         25        0.25       98.01
         12 |         20        0.20       98.21
         13 |         11        0.11       98.32
         14 |         17        0.17       98.49
         15 |         13        0.13       98.62
         16 |         14        0.14       98.76
         17 |         10        0.10       98.86
         18 |         10        0.10       98.96
         19 |         10        0.10       99.06
         20 |          4        0.04       99.10
         21 |          1        0.01       99.11
         22 |         11        0.11       99.22
         23 |         11        0.11       99.33
         24 |          6        0.06       99.39
         25 |          6        0.06       99.45
         26 |          2        0.02       99.47
         27 |          7        0.07       99.54
         28 |          5        0.05       99.59
         29 |          1        0.01       99.60
         30 |          1        0.01       99.61
         31 |          1        0.01       99.62
         32 |          2        0.02       99.64
         33 |          3        0.03       99.67
         34 |          1        0.01       99.68
         35 |          3        0.03       99.71
         36 |          2        0.02       99.73
         38 |          4        0.04       99.77
         39 |          1        0.01       99.78
         40 |          1        0.01       99.79
         41 |          1        0.01       99.80
         42 |          3        0.03       99.83
         43 |          1        0.01       99.84
         44 |          2        0.02       99.86
         45 |          1        0.01       99.87
         46 |          3        0.03       99.90
         51 |          1        0.01       99.91
         53 |          1        0.01       99.92
         55 |          1        0.01       99.93
         63 |          1        0.01       99.94
         67 |          1        0.01       99.95
         68 |          1        0.01       99.96
         69 |          1        0.01       99.97
         70 |          1        0.01       99.98
         72 |          1        0.01       99.99
        102 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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