Frequencies for first 10,000 rows of pct012o163 variable in sf12000860us30 dataset :

   56 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,977       79.77       79.77
          1 |      1,151       11.51       91.28
          2 |        434        4.34       95.62
          3 |        174        1.74       97.36
          4 |        110        1.10       98.46
          5 |         53        0.53       98.99
          6 |         20        0.20       99.19
          7 |         27        0.27       99.46
          8 |          9        0.09       99.55
          9 |         10        0.10       99.65
         10 |         10        0.10       99.75
         11 |          5        0.05       99.80
         12 |          7        0.07       99.87
         13 |          3        0.03       99.90
         14 |          1        0.01       99.91
         15 |          1        0.01       99.92
         16 |          2        0.02       99.94
         17 |          1        0.01       99.95
         19 |          2        0.02       99.97
         22 |          1        0.01       99.98
         23 |          1        0.01       99.99
         26 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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