Frequencies for first 10,000 rows of dmeduc variable in natlterr1995 dataset :

  Education |
  of Mother |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          9        0.09        0.09
          1 |          9        0.09        0.18
          2 |         28        0.28        0.46
          3 |         34        0.34        0.80
          4 |         57        0.57        1.37
          5 |         68        0.68        2.05
          6 |        173        1.73        3.78
          7 |        371        3.71        7.49
          8 |        469        4.69       12.18
          9 |        730        7.30       19.48
         10 |        554        5.54       25.02
         11 |        696        6.96       31.98
         12 |      2,781       27.81       59.79
         13 |        473        4.73       64.52
         14 |      1,254       12.54       77.06
         15 |        502        5.02       82.08
         16 |      1,463       14.63       96.71
         17 |        274        2.74       99.45
         99 |         55        0.55      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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