Frequencies for first 10,000 rows of dfeduc variable in natl1989 dataset :

  Education |
  of Father |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          1        0.01        0.01
          1 |          2        0.02        0.03
          3 |          2        0.02        0.05
          4 |          3        0.03        0.08
          5 |          4        0.04        0.12
          6 |         19        0.19        0.31
          7 |         52        0.52        0.83
          8 |        123        1.23        2.06
          9 |        221        2.21        4.27
         10 |        360        3.60        7.87
         11 |        445        4.45       12.32
         12 |      2,758       27.58       39.90
         13 |        415        4.15       44.05
         14 |        705        7.05       51.10
         15 |        244        2.44       53.54
         16 |        885        8.85       62.39
         17 |        586        5.86       68.25
         99 |      3,175       31.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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