Frequencies for first 10,000 rows of pct013e012 variable in sf12000860us31 dataset :

   30 to 34 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,953       89.53       89.53
          1 |        711        7.11       96.64
          2 |        213        2.13       98.77
          3 |         67        0.67       99.44
          4 |         24        0.24       99.68
          5 |         14        0.14       99.82
          6 |          8        0.08       99.90
          7 |          3        0.03       99.93
          8 |          2        0.02       99.95
         10 |          3        0.03       99.98
         14 |          1        0.01       99.99
         16 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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