Frequencies for rx_ce_lti_rxhcc66 variable in rxcoeff dataset :

rx_ce_lti_r |
  xhcc66 -- |
profound or |
     severe |
     mental |
retardation |
/developmen |
tal disabil |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

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