Frequencies for first 10,000 rows of pct012c130 variable in sf12010860us22 dataset :

   23 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,478       84.78       84.78
          1 |        944        9.44       94.22
          2 |        273        2.73       96.95
          3 |        120        1.20       98.15
          4 |         67        0.67       98.82
          5 |         35        0.35       99.17
          6 |         22        0.22       99.39
          7 |         11        0.11       99.50
          8 |         14        0.14       99.64
          9 |         12        0.12       99.76
         10 |          3        0.03       99.79
         11 |          2        0.02       99.81
         12 |          3        0.03       99.84
         13 |          3        0.03       99.87
         14 |          1        0.01       99.88
         15 |          3        0.03       99.91
         21 |          2        0.02       99.93
         28 |          1        0.01       99.94
         36 |          1        0.01       99.95
         44 |          1        0.01       99.96
         50 |          1        0.01       99.97
         54 |          1        0.01       99.98
         59 |          1        0.01       99.99
         68 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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