Frequencies for first 10,000 rows of pct013e006 variable in sf12000860us31 dataset :

   15 to 17 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,373       93.73       93.73
          1 |        456        4.56       98.29
          2 |        109        1.09       99.38
          3 |         38        0.38       99.76
          4 |         20        0.20       99.96
          5 |          2        0.02       99.98
          6 |          1        0.01       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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