Frequencies for first 10,000 rows of pct013e013 variable in sf12000860us31 dataset :

   35 to 39 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,938       89.38       89.38
          1 |        759        7.59       96.97
          2 |        197        1.97       98.94
          3 |         68        0.68       99.62
          4 |         16        0.16       99.78
          5 |         14        0.14       99.92
          6 |          3        0.03       99.95
          7 |          2        0.02       99.97
          8 |          1        0.01       99.98
          9 |          1        0.01       99.99
         15 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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