Frequencies for first 10,000 rows of pct012n041 variable in sf12000860us29 dataset :

   38 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,230       92.30       92.30
          1 |        521        5.21       97.51
          2 |        122        1.22       98.73
          3 |         43        0.43       99.16
          4 |         27        0.27       99.43
          5 |         10        0.10       99.53
          6 |          6        0.06       99.59
          7 |          8        0.08       99.67
          8 |         10        0.10       99.77
          9 |          4        0.04       99.81
         10 |          5        0.05       99.86
         11 |          2        0.02       99.88
         12 |          1        0.01       99.89
         13 |          2        0.02       99.91
         14 |          1        0.01       99.92
         15 |          1        0.01       99.93
         18 |          2        0.02       99.95
         19 |          1        0.01       99.96
         24 |          1        0.01       99.97
         25 |          1        0.01       99.98
         37 |          1        0.01       99.99
         56 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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