Frequencies for first 10,000 rows of pct012k025 variable in sf12000860us26 dataset :

   22 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,920       89.20       89.20
          1 |        763        7.63       96.83
          2 |        188        1.88       98.71
          3 |         57        0.57       99.28
          4 |         27        0.27       99.55
          5 |         17        0.17       99.72
          6 |          6        0.06       99.78
          7 |          2        0.02       99.80
          8 |          5        0.05       99.85
         12 |          2        0.02       99.87
         13 |          1        0.01       99.88
         16 |          2        0.02       99.90
         24 |          1        0.01       99.91
         26 |          1        0.01       99.92
         28 |          2        0.02       99.94
         30 |          1        0.01       99.95
         41 |          1        0.01       99.96
         48 |          1        0.01       99.97
         61 |          1        0.01       99.98
         65 |          1        0.01       99.99
         83 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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