*100% flash sites...not hybrids.
any current or past year stat would be great.
Probably not many. There's little reason for a complete Flash site on the Internet (like Grooveshark?). Applications are a different story, but they're pretty much entirely on "enterprise" networks so they're impossible to count. I don't know of any stats. Any such Internet based stat would be meaningless anyway, because the vast majority are on private Intranets. My current personal view as a developer is: if you're deploying to the Internet, use something like GWT which is JS-based; if you're deploying on an enterprise intranet, use Adobe Flex (Flash based).
Europe, Middle East and Africa