I have a slightly fairer comparison which excludes relative rankings.
If you search for the name of my shop, Hannah Zakari, my website is the first result on every major search engine (I've just tried google, yahoo, bing, ask, search.com and baidu)
People who have searched for "Hannah Zakari" in the past 30 days came from the following search engines:
1. google 95.86%
2. bing 1.60%
3. yahoo 1.35%
4. aol 0.75%
5. search 0.30%
The same period last year looked like this:
1. google 92.77%
2. live 2.95%
3. yahoo 2.09%
4. search 1.52%
5. aol 0.57%
The site is UK based, so this will be a geographically limited sample, but I'm not seeing a massive surge in Bing-age.