Frequencies for mdc variable in mdc_mdcdesc2004 dataset :

      Major |
 Diagnostic |
   Category |
      (MDC) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          1        3.85        3.85
          1 |          1        3.85        7.69
          2 |          1        3.85       11.54
          3 |          1        3.85       15.38
          4 |          1        3.85       19.23
          5 |          1        3.85       23.08
          6 |          1        3.85       26.92
          7 |          1        3.85       30.77
          8 |          1        3.85       34.62
          9 |          1        3.85       38.46
         10 |          1        3.85       42.31
         11 |          1        3.85       46.15
         12 |          1        3.85       50.00
         13 |          1        3.85       53.85
         14 |          1        3.85       57.69
         15 |          1        3.85       61.54
         16 |          1        3.85       65.38
         17 |          1        3.85       69.23
         18 |          1        3.85       73.08
         19 |          1        3.85       76.92
         20 |          1        3.85       80.77
         21 |          1        3.85       84.62
         22 |          1        3.85       88.46
         23 |          1        3.85       92.31
         24 |          1        3.85       96.15
         25 |          1        3.85      100.00
------------+-----------------------------------
      Total |         26      100.00

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