Frequencies for first 10,000 rows of pct012o136 variable in sf12010860us34 dataset :

   29 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,860       68.60       68.60
          1 |      1,217       12.17       80.77
          2 |        545        5.45       86.22
          3 |        366        3.66       89.88
          4 |        231        2.31       92.19
          5 |        205        2.05       94.24
          6 |        121        1.21       95.45
          7 |         90        0.90       96.35
          8 |         85        0.85       97.20
          9 |         49        0.49       97.69
         10 |         46        0.46       98.15
         11 |         45        0.45       98.60
         12 |         31        0.31       98.91
         13 |         17        0.17       99.08
         14 |         18        0.18       99.26
         15 |         17        0.17       99.43
         16 |         12        0.12       99.55
         17 |         13        0.13       99.68
         18 |          4        0.04       99.72
         19 |          4        0.04       99.76
         20 |          4        0.04       99.80
         21 |          1        0.01       99.81
         22 |          5        0.05       99.86
         23 |          2        0.02       99.88
         24 |          2        0.02       99.90
         25 |          1        0.01       99.91
         26 |          3        0.03       99.94
         33 |          1        0.01       99.95
         37 |          1        0.01       99.96
         38 |          2        0.02       99.98
         39 |          1        0.01       99.99
         41 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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