Frequencies for first 10,000 rows of pct013g009 variable in sf12010860us36 dataset :

   21 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,195       61.95       61.95
          1 |      1,370       13.70       75.65
          2 |        629        6.29       81.94
          3 |        398        3.98       85.92
          4 |        276        2.76       88.68
          5 |        196        1.96       90.64
          6 |        138        1.38       92.02
          7 |        137        1.37       93.39
          8 |        108        1.08       94.47
          9 |         74        0.74       95.21
         10 |         67        0.67       95.88
         11 |         61        0.61       96.49
         12 |         43        0.43       96.92
         13 |         40        0.40       97.32
         14 |         34        0.34       97.66
         15 |         37        0.37       98.03
         16 |         19        0.19       98.22
         17 |         27        0.27       98.49
         18 |         18        0.18       98.67
         19 |         10        0.10       98.77
         20 |          8        0.08       98.85
         21 |         13        0.13       98.98
         22 |          7        0.07       99.05
         23 |          5        0.05       99.10
         24 |         11        0.11       99.21
         25 |         11        0.11       99.32
         26 |          1        0.01       99.33
         27 |          7        0.07       99.40
         28 |          3        0.03       99.43
         29 |          7        0.07       99.50
         30 |          4        0.04       99.54
         31 |          7        0.07       99.61
         32 |          5        0.05       99.66
         33 |          3        0.03       99.69
         34 |          1        0.01       99.70
         35 |          4        0.04       99.74
         36 |          2        0.02       99.76
         37 |          6        0.06       99.82
         39 |          1        0.01       99.83
         42 |          3        0.03       99.86
         43 |          3        0.03       99.89
         44 |          2        0.02       99.91
         45 |          2        0.02       99.93
         48 |          1        0.01       99.94
         49 |          1        0.01       99.95
         50 |          1        0.01       99.96
         53 |          1        0.01       99.97
         54 |          1        0.01       99.98
         70 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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