Frequencies for first 10,000 rows of edwt variable in nhamcsed2007 dataset :

  ed weight |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,907       99.07       99.07
          2 |          5        0.05       99.12
          3 |          6        0.06       99.18
          4 |          6        0.06       99.24
          5 |          9        0.09       99.33
          6 |          4        0.04       99.37
          7 |          1        0.01       99.38
          8 |          5        0.05       99.43
          9 |          4        0.04       99.47
         10 |          8        0.08       99.55
         11 |          5        0.05       99.60
         12 |          7        0.07       99.67
         13 |          2        0.02       99.69
         14 |          3        0.03       99.72
         15 |          3        0.03       99.75
         20 |          1        0.01       99.76
         21 |          3        0.03       99.79
         22 |          1        0.01       99.80
         23 |          2        0.02       99.82
         24 |          1        0.01       99.83
         26 |          1        0.01       99.84
         27 |          1        0.01       99.85
         31 |          2        0.02       99.87
         38 |          1        0.01       99.88
         39 |          1        0.01       99.89
         48 |          1        0.01       99.90
         56 |          1        0.01       99.91
         57 |          4        0.04       99.95
         59 |          1        0.01       99.96
         65 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016