Frequencies for first 10,000 rows of pct012g174 variable in sf12000860us22 dataset :

   67 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,340       83.40       83.40
          1 |        995        9.95       93.35
          2 |        283        2.83       96.18
          3 |        127        1.27       97.45
          4 |         68        0.68       98.13
          5 |         45        0.45       98.58
          6 |         30        0.30       98.88
          7 |         27        0.27       99.15
          8 |         20        0.20       99.35
          9 |         13        0.13       99.48
         10 |         14        0.14       99.62
         11 |          6        0.06       99.68
         12 |          7        0.07       99.75
         13 |          6        0.06       99.81
         14 |          3        0.03       99.84
         15 |          3        0.03       99.87
         16 |          3        0.03       99.90
         17 |          3        0.03       99.93
         18 |          2        0.02       99.95
         21 |          1        0.01       99.96
         22 |          2        0.02       99.98
         23 |          1        0.01       99.99
         25 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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