SRL for [typical]: The stats are clear : IED victims make up a bigger chunk of our casualties every month . Over the last six months , IEDs have caused 63 % of US combat deaths . Last month -LRB- October 2005 -RRB- was [typical] : out of 96 US troops killed , IEDs were responsible for 57 .
ARG-1: Last month -LRB- October 2005 -RRB-