Frequencies for first 10,000 rows of opdwt variable in nhamcsopd2005 dataset :

 opd weight |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |          6        0.06        0.06
          3 |          1        0.01        0.07
          4 |          7        0.07        0.14
          5 |          5        0.05        0.19
          6 |          9        0.09        0.28
          7 |          2        0.02        0.30
          8 |          3        0.03        0.33
          9 |          2        0.02        0.35
         12 |          2        0.02        0.37
         14 |          4        0.04        0.41
         15 |          2        0.02        0.43
         17 |          3        0.03        0.46
         18 |          1        0.01        0.47
         21 |          1        0.01        0.48
         22 |          2        0.02        0.50
         24 |          2        0.02        0.52
         26 |          1        0.01        0.53
         29 |          1        0.01        0.54
         31 |          1        0.01        0.55
         35 |          1        0.01        0.56
         46 |          1        0.01        0.57
         50 |          1        0.01        0.58
         64 |          1        0.01        0.59
          . |      9,941       99.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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