Frequencies for first 10,000 rows of pct013e036 variable in sf12000860us31 dataset :

   30 to 34 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,922       89.22       89.22
          1 |        745        7.45       96.67
          2 |        201        2.01       98.68
          3 |         74        0.74       99.42
          4 |         33        0.33       99.75
          5 |          7        0.07       99.82
          6 |          8        0.08       99.90
          7 |          3        0.03       99.93
          8 |          2        0.02       99.95
          9 |          3        0.03       99.98
         10 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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