Frequencies for transplant_kidney_only_3m variable in hcccoefn dataset :

transplant_ |
kidney_only |
        _3m |      Freq.     Percent        Cum.
------------+-----------------------------------
      1.013 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

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