Frequencies for first 10,000 rows of dmeduc variable in natlterr1998 dataset :

  Education |
  of Mother |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          5        0.05        0.05
          1 |         10        0.10        0.15
          2 |         11        0.11        0.26
          3 |         22        0.22        0.48
          4 |         44        0.44        0.92
          5 |         63        0.63        1.55
          6 |        146        1.46        3.01
          7 |        335        3.35        6.36
          8 |        415        4.15       10.51
          9 |        634        6.34       16.85
         10 |        535        5.35       22.20
         11 |        685        6.85       29.05
         12 |      2,887       28.87       57.92
         13 |        498        4.98       62.90
         14 |      1,220       12.20       75.10
         15 |        537        5.37       80.47
         16 |      1,669       16.69       97.16
         17 |        270        2.70       99.86
         99 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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