Frequencies for first 10,000 rows of edwt variable in nhamcsed2009 dataset :

  ed weight |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,906       99.06       99.06
          1 |          9        0.09       99.15
          2 |          5        0.05       99.20
          3 |          8        0.08       99.28
          4 |          9        0.09       99.37
          5 |          7        0.07       99.44
          6 |         14        0.14       99.58
          7 |          4        0.04       99.62
          8 |          4        0.04       99.66
          9 |          4        0.04       99.70
         10 |          5        0.05       99.75
         12 |          3        0.03       99.78
         13 |          2        0.02       99.80
         14 |          2        0.02       99.82
         15 |          1        0.01       99.83
         16 |          2        0.02       99.85
         18 |          1        0.01       99.86
         20 |          2        0.02       99.88
         21 |          1        0.01       99.89
         24 |          1        0.01       99.90
         29 |          1        0.01       99.91
         30 |          1        0.01       99.92
         31 |          1        0.01       99.93
         43 |          1        0.01       99.94
         44 |          1        0.01       99.95
         51 |          1        0.01       99.96
         55 |          1        0.01       99.97
         57 |          1        0.01       99.98
         73 |          1        0.01       99.99
         89 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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