Re: 12% used it *before* release?
I used .NET before it was released.
I was a contractor at the time working with VB6 and thought that .NET would be the next big thing (i.e. would get me more contracts!) - so I was exploring the SDKs in 2001 before the IDE was released.
Roll forwards to 2021 and although I'm no longer a contractor I'm still making a living from using .NET :)