Frequencies for first 10,000 rows of pct012g064 variable in sf12010860us26 dataset :

   61 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,476       74.76       74.76
          1 |      1,325       13.25       88.01
          2 |        539        5.39       93.40
          3 |        251        2.51       95.91
          4 |        121        1.21       97.12
          5 |         80        0.80       97.92
          6 |         51        0.51       98.43
          7 |         39        0.39       98.82
          8 |         19        0.19       99.01
          9 |         19        0.19       99.20
         10 |         16        0.16       99.36
         11 |         10        0.10       99.46
         12 |         12        0.12       99.58
         13 |          5        0.05       99.63
         14 |          8        0.08       99.71
         15 |          5        0.05       99.76
         16 |          5        0.05       99.81
         17 |          3        0.03       99.84
         18 |          3        0.03       99.87
         19 |          3        0.03       99.90
         20 |          3        0.03       99.93
         21 |          2        0.02       99.95
         22 |          1        0.01       99.96
         25 |          2        0.02       99.98
         28 |          1        0.01       99.99
         34 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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