Frequencies for first 10,000 rows of pct012f183 variable in sf12000860us21 dataset :

   76 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,218       92.18       92.18
          1 |        375        3.75       95.93
          2 |        144        1.44       97.37
          3 |         63        0.63       98.00
          4 |         45        0.45       98.45
          5 |         34        0.34       98.79
          6 |         23        0.23       99.02
          7 |         15        0.15       99.17
          8 |         13        0.13       99.30
          9 |         13        0.13       99.43
         10 |          1        0.01       99.44
         11 |          3        0.03       99.47
         12 |          5        0.05       99.52
         13 |          7        0.07       99.59
         14 |          7        0.07       99.66
         15 |          2        0.02       99.68
         16 |          3        0.03       99.71
         17 |          2        0.02       99.73
         18 |          2        0.02       99.75
         19 |          2        0.02       99.77
         20 |          3        0.03       99.80
         21 |          4        0.04       99.84
         22 |          2        0.02       99.86
         23 |          3        0.03       99.89
         24 |          1        0.01       99.90
         25 |          2        0.02       99.92
         29 |          1        0.01       99.93
         30 |          1        0.01       99.94
         32 |          2        0.02       99.96
         36 |          1        0.01       99.97
         40 |          1        0.01       99.98
         44 |          1        0.01       99.99
         48 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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