Frequencies for mdc variable in drg2010 dataset :

      Major |
 Diagnostic |
   Category |
      (MDC) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         25        2.50        2.50
          1 |         75        7.51       10.01
          2 |         10        1.00       11.01
          3 |         25        2.50       13.51
          4 |         40        4.00       17.52
          5 |         88        8.81       26.33
          6 |         61        6.11       32.43
          7 |         36        3.60       36.04
          8 |         99        9.91       45.95
          9 |         29        2.90       48.85
         10 |         26        2.60       51.45
         11 |         43        4.30       55.76
         12 |         21        2.10       57.86
         13 |         25        2.50       60.36
         14 |         15        1.50       61.86
         15 |          7        0.70       62.56
         16 |         15        1.50       64.06
         17 |         27        2.70       66.77
         18 |         17        1.70       68.47
         19 |          9        0.90       69.37
         20 |          4        0.40       69.77
         21 |         20        2.00       71.77
         22 |          6        0.60       72.37
         23 |         10        1.00       73.37
         24 |          8        0.80       74.17
         25 |          6        0.60       74.77
          . |        252       25.23      100.00
------------+-----------------------------------
      Total |        999      100.00

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