Frequencies for first 10,000 rows of opdwt variable in nhamcsopd2006 dataset :

 opd weight |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         10        0.10        0.10
          2 |          3        0.03        0.13
          3 |          7        0.07        0.20
          4 |          4        0.04        0.24
          5 |          2        0.02        0.26
          6 |          7        0.07        0.33
          7 |          6        0.06        0.39
          8 |          1        0.01        0.40
          9 |          3        0.03        0.43
         10 |          2        0.02        0.45
         12 |          4        0.04        0.49
         13 |          1        0.01        0.50
         14 |          3        0.03        0.53
         15 |          1        0.01        0.54
         16 |          1        0.01        0.55
         17 |          2        0.02        0.57
         18 |          1        0.01        0.58
         19 |          1        0.01        0.59
         20 |          1        0.01        0.60
         22 |          1        0.01        0.61
         23 |          1        0.01        0.62
         31 |          1        0.01        0.63
         32 |          1        0.01        0.64
         35 |          1        0.01        0.65
         37 |          1        0.01        0.66
         48 |          1        0.01        0.67
         53 |          1        0.01        0.68
         64 |          1        0.01        0.69
         69 |          1        0.01        0.70
          . |      9,930       99.30      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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