Frequencies for first 10,000 rows of opdwt variable in nhamcsopd2010 dataset :

 outpatient |
 department |
     weight |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,937       99.37       99.37
          1 |          2        0.02       99.39
          2 |          3        0.03       99.42
          4 |          8        0.08       99.50
          5 |          7        0.07       99.57
          6 |          4        0.04       99.61
          7 |          4        0.04       99.65
          8 |          5        0.05       99.70
          9 |          6        0.06       99.76
         10 |          2        0.02       99.78
         11 |          1        0.01       99.79
         12 |          1        0.01       99.80
         13 |          2        0.02       99.82
         14 |          1        0.01       99.83
         15 |          5        0.05       99.88
         18 |          1        0.01       99.89
         20 |          1        0.01       99.90
         21 |          1        0.01       99.91
         28 |          1        0.01       99.92
         33 |          1        0.01       99.93
         34 |          1        0.01       99.94
         52 |          1        0.01       99.95
         60 |          2        0.02       99.97
         62 |          2        0.02       99.99
         85 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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