Frequencies for cnd_hcc70 variable in hcccoefn dataset :

quadriplegi |
          a |      Freq.     Percent        Cum.
------------+-----------------------------------
      1.053 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

by Jean Roth , jroth@nber.org , 8 May 2017