Frequencies for mdc variable in drg2000 dataset :

      Major |
 Diagnostic |
   Category |
      (MDC) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         10        1.96        1.96
          1 |         35        6.85        8.81
          2 |         13        2.54       11.35
          3 |         31        6.07       17.42
          4 |         29        5.68       23.09
          5 |         45        8.81       31.90
          6 |         40        7.83       39.73
          7 |         20        3.91       43.64
          8 |         54       10.57       54.21
          9 |         28        5.48       59.69
         10 |         17        3.33       63.01
         11 |         32        6.26       69.28
         12 |         19        3.72       72.99
         13 |         17        3.33       76.32
         14 |         15        2.94       79.26
         15 |          7        1.37       80.63
         16 |          8        1.57       82.19
         17 |         17        3.33       85.52
         18 |          9        1.76       87.28
         19 |          9        1.76       89.04
         20 |          5        0.98       90.02
         21 |         17        3.33       93.35
         22 |          8        1.57       94.91
         23 |          7        1.37       96.28
         24 |          4        0.78       97.06
         25 |          3        0.59       97.65
          . |         12        2.35      100.00
------------+-----------------------------------
      Total |        511      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016