Frequencies for first 10,000 rows of dmeduc variable in natl2007 dataset :

   Mother's |
  Education |
        RFP |
  647=f_med |
          U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          3        0.03        0.03
          2 |          1        0.01        0.04
          3 |          2        0.02        0.06
          4 |          9        0.09        0.15
          5 |          6        0.06        0.21
          6 |         13        0.13        0.34
          7 |         17        0.17        0.51
          8 |         78        0.78        1.29
          9 |        211        2.11        3.40
         10 |        393        3.93        7.33
         11 |        629        6.29       13.62
         12 |      4,178       41.78       55.40
         13 |      1,334       13.34       68.74
         14 |        974        9.74       78.48
         15 |        345        3.45       81.93
         16 |        930        9.30       91.23
         17 |        613        6.13       97.36
         99 |        264        2.64      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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