Frequencies for rx_ce_lowaged_rxhcc66 variable in rxcoeff dataset :

Rx_CE_LowAg |
 ed_RXHCC66 |
-- Profound |
  or Severe |
     Mental |
Retardation |
/Developmen |
    tal Dis |      Freq.     Percent        Cum.
------------+-----------------------------------
       .403 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

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