End Year Statistic for Main Search Engines

No. 1 Google – from 65 percent in May to 65.6 in November, according to data released by comScore to analysts late on Tuesday.
No. 2 Yahoo. – from 20.1 percent in May to 17.5 percent in November.
No. 3 Bing – from 8 percent in May to 10.3 percent in November.

Source: http://bits.blogs.nytimes.com/2009/12/16/google-and-bing-keep-rising-while-yahoo-drops-again/