Frequencies for first 10,000 rows of pct012g177 variable in sf12000860us22 dataset :

   70 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,425       84.25       84.25
          1 |        973        9.73       93.98
          2 |        263        2.63       96.61
          3 |         97        0.97       97.58
          4 |         65        0.65       98.23
          5 |         52        0.52       98.75
          6 |         33        0.33       99.08
          7 |         12        0.12       99.20
          8 |         22        0.22       99.42
          9 |         11        0.11       99.53
         10 |         11        0.11       99.64
         11 |          6        0.06       99.70
         12 |          9        0.09       99.79
         13 |          5        0.05       99.84
         14 |          3        0.03       99.87
         15 |          3        0.03       99.90
         16 |          2        0.02       99.92
         17 |          2        0.02       99.94
         18 |          2        0.02       99.96
         19 |          1        0.01       99.97
         22 |          1        0.01       99.98
         23 |          1        0.01       99.99
         24 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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