Frequencies for first 10,000 rows of dmeduc variable in natlterr1994 dataset :

  Education |
  of Mother |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          8        0.08        0.08
          1 |         17        0.17        0.25
          2 |         28        0.28        0.53
          3 |         41        0.41        0.94
          4 |         86        0.86        1.80
          5 |         75        0.75        2.55
          6 |        179        1.79        4.34
          7 |        381        3.81        8.15
          8 |        473        4.73       12.88
          9 |        735        7.35       20.23
         10 |        576        5.76       25.99
         11 |        757        7.57       33.56
         12 |      2,745       27.45       61.01
         13 |        492        4.92       65.93
         14 |      1,191       11.91       77.84
         15 |        541        5.41       83.25
         16 |      1,386       13.86       97.11
         17 |        264        2.64       99.75
         99 |         25        0.25      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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