Frequencies for first 10,000 rows of pct012g036 variable in sf12010860us26 dataset :

   33 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,569       65.69       65.69
          1 |      1,245       12.45       78.14
          2 |        622        6.22       84.36
          3 |        396        3.96       88.32
          4 |        231        2.31       90.63
          5 |        185        1.85       92.48
          6 |        132        1.32       93.80
          7 |        114        1.14       94.94
          8 |         93        0.93       95.87
          9 |         61        0.61       96.48
         10 |         56        0.56       97.04
         11 |         45        0.45       97.49
         12 |         37        0.37       97.86
         13 |         32        0.32       98.18
         14 |         30        0.30       98.48
         15 |         17        0.17       98.65
         16 |         20        0.20       98.85
         17 |         20        0.20       99.05
         18 |         12        0.12       99.17
         19 |          9        0.09       99.26
         20 |          6        0.06       99.32
         21 |          7        0.07       99.39
         22 |         10        0.10       99.49
         23 |          4        0.04       99.53
         24 |          4        0.04       99.57
         25 |          7        0.07       99.64
         26 |          4        0.04       99.68
         27 |          5        0.05       99.73
         28 |          3        0.03       99.76
         29 |          4        0.04       99.80
         30 |          4        0.04       99.84
         31 |          2        0.02       99.86
         32 |          1        0.01       99.87
         33 |          3        0.03       99.90
         35 |          1        0.01       99.91
         36 |          3        0.03       99.94
         38 |          2        0.02       99.96
         42 |          1        0.01       99.97
         43 |          1        0.01       99.98
         68 |          1        0.01       99.99
         71 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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