Frequencies for first 10,000 rows of dfeduc variable in natl1994 dataset :

  Education |
  of Father |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          1        0.01        0.01
          1 |          7        0.07        0.08
          2 |          2        0.02        0.10
          3 |          2        0.02        0.12
          4 |          1        0.01        0.13
          5 |          2        0.02        0.15
          6 |         18        0.18        0.33
          7 |         53        0.53        0.86
          8 |         96        0.96        1.82
          9 |        175        1.75        3.57
         10 |        256        2.56        6.13
         11 |        352        3.52        9.65
         12 |      2,359       23.59       33.24
         13 |        368        3.68       36.92
         14 |        712        7.12       44.04
         15 |        291        2.91       46.95
         16 |        978        9.78       56.73
         17 |        626        6.26       62.99
         99 |      3,701       37.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015