Dow Jones' 2010 Executive Compensation Report for VC-Backed Companies

The first thing that came to my mind was non software related companies that have large manufacturing/operational overhead to launch a product. It's possible, with a small sample like this, to have only surveyed hardware companies -- which would definitely skew things quite a bit.

This certainly isn't the Silicon Valley demographic, but I'm not sure what the demographic _is_. I'd be interested to see a breakdown of what kinds of companies were surveyed.

That being said, the numbers given are for CXOs, and not specifically founders (though there's obviously a strong overlap). Founders in Silicon Valley, even after raising large rounds, will typically own much more than 5% of the company.