Urg... Even in 2012 IE6 was ancient. If I was doing freelance and a client wanted IE6 support, I'm pretty sure I'd quadruple my rate and let them know it will take ten times as long to complete. Fuck IE6.
...and damn. IE6 was released in 2001, and the last update was 2008.
By 2012, IE9 was the norm, and IE 10 came out late in the year. That's also around the time that Chrome started gaining significant market share.