Frequencies for cfd_hcc40 variable in hcccoefn dataset :

 Rheumatoid |
  Arthritis |
        and |
Inflammator |
          y |
 Connective |
     Tissue |
    Disease |      Freq.     Percent        Cum.
------------+-----------------------------------
       .349 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

by Jean Roth , jroth@nber.org , 7 Feb 2019