Frequencies for first 10,000 rows of pct012o134 variable in sf12000860us30 dataset :

   27 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,310       73.10       73.10
          1 |      1,200       12.00       85.10
          2 |        473        4.73       89.83
          3 |        266        2.66       92.49
          4 |        179        1.79       94.28
          5 |        109        1.09       95.37
          6 |         85        0.85       96.22
          7 |         88        0.88       97.10
          8 |         51        0.51       97.61
          9 |         33        0.33       97.94
         10 |         30        0.30       98.24
         11 |         23        0.23       98.47
         12 |         25        0.25       98.72
         13 |         12        0.12       98.84
         14 |         18        0.18       99.02
         15 |         10        0.10       99.12
         16 |          6        0.06       99.18
         17 |         12        0.12       99.30
         18 |         13        0.13       99.43
         19 |          9        0.09       99.52
         20 |          4        0.04       99.56
         21 |          4        0.04       99.60
         22 |         13        0.13       99.73
         23 |          1        0.01       99.74
         24 |          5        0.05       99.79
         25 |          4        0.04       99.83
         26 |          1        0.01       99.84
         27 |          1        0.01       99.85
         28 |          2        0.02       99.87
         30 |          1        0.01       99.88
         31 |          2        0.02       99.90
         32 |          1        0.01       99.91
         35 |          3        0.03       99.94
         36 |          3        0.03       99.97
         46 |          1        0.01       99.98
         48 |          1        0.01       99.99
         61 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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