[amibroker] Does ETF Volume Match Index Volume?

[garrybartsch]

I am not able to get good data for the indices (Eg. ^DJI) from Yahoo but am 
wondering if the volume patterns for the Index ETFs closely match the volume 
for the indices they are supposed to track? That is, if volume for the ^DJI is 
declining (or increasing, spiking, etc.) would the volume for the DIA 
accurately mirror that? Thanks.