Frequencies for first 10,000 rows of pct012n027 variable in sf12000860us29 dataset :

   24 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,278       92.78       92.78
          1 |        432        4.32       97.10
          2 |        141        1.41       98.51
          3 |         52        0.52       99.03
          4 |         25        0.25       99.28
          5 |         19        0.19       99.47
          6 |         11        0.11       99.58
          7 |         10        0.10       99.68
          8 |          3        0.03       99.71
          9 |          5        0.05       99.76
         10 |          7        0.07       99.83
         11 |          1        0.01       99.84
         12 |          2        0.02       99.86
         13 |          2        0.02       99.88
         16 |          1        0.01       99.89
         17 |          1        0.01       99.90
         18 |          3        0.03       99.93
         20 |          2        0.02       99.95
         22 |          1        0.01       99.96
         25 |          1        0.01       99.97
         26 |          2        0.02       99.99
         47 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2017