Frequencies for first 10,000 rows of pct012k048 variable in sf12000860us26 dataset :

   45 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,725       87.25       87.25
          1 |        915        9.15       96.40
          2 |        237        2.37       98.77
          3 |         68        0.68       99.45
          4 |         20        0.20       99.65
          5 |          8        0.08       99.73
          6 |          3        0.03       99.76
          7 |          6        0.06       99.82
          8 |          2        0.02       99.84
          9 |          3        0.03       99.87
         12 |          2        0.02       99.89
         13 |          1        0.01       99.90
         19 |          2        0.02       99.92
         22 |          1        0.01       99.93
         24 |          1        0.01       99.94
         28 |          1        0.01       99.95
         32 |          2        0.02       99.97
         54 |          1        0.01       99.98
         64 |          1        0.01       99.99
         67 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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