Frequencies for first 10,000 rows of dfeduc variable in natl1985 dataset :

  Education |
  of Father |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         11        0.11        0.11
          1 |          1        0.01        0.12
          2 |          1        0.01        0.13
          3 |          5        0.05        0.18
          4 |          9        0.09        0.27
          5 |         11        0.11        0.38
          6 |         34        0.34        0.72
          7 |         73        0.73        1.45
          8 |        144        1.44        2.89
          9 |        327        3.27        6.16
         10 |        447        4.47       10.63
         11 |        543        5.43       16.06
         12 |      3,113       31.13       47.19
         13 |        365        3.65       50.84
         14 |        683        6.83       57.67
         15 |        248        2.48       60.15
         16 |        882        8.82       68.97
         17 |        559        5.59       74.56
         99 |      2,544       25.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016