Frequencies for first 10,000 rows of opdwt variable in nhamcsopd2008 dataset :

 opd weight |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,945       99.45       99.45
          1 |          2        0.02       99.47
          2 |          4        0.04       99.51
          3 |          1        0.01       99.52
          4 |          9        0.09       99.61
          5 |          2        0.02       99.63
          6 |          4        0.04       99.67
          7 |          3        0.03       99.70
          8 |          5        0.05       99.75
         10 |          3        0.03       99.78
         11 |          2        0.02       99.80
         12 |          5        0.05       99.85
         14 |          2        0.02       99.87
         16 |          2        0.02       99.89
         17 |          1        0.01       99.90
         18 |          2        0.02       99.92
         19 |          1        0.01       99.93
         21 |          1        0.01       99.94
         23 |          1        0.01       99.95
         26 |          1        0.01       99.96
         62 |          1        0.01       99.97
         65 |          2        0.02       99.99
         68 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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