Looking for CRE Metrics

[Matt Sullivan]

Hi everyone, 

I'm new here, I'm a co-founder in an early stage startup and we are a current participant in the Ycombinator Startup School Program.  

I'm looking for CRE market data, specifically total transactions a year, both sales and leases.  I'm looking for volume data, however most of what I'm finding is either market growth statics or market size in $$.

Any tips on where to look or favorite websites for this type of info?

Thanks!

Matt Sullivan