Frequencies for ins_chf_copd variable in hcccoefn dataset :

ins_chf_cop |
          d |      Freq.     Percent        Cum.
------------+-----------------------------------
       .194 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

by Jean Roth , jroth@nber.org , 2 May 2016