Google’s market dominance in terms of reach is just as impressive as it is in terms of usage.
In December, 77 percent of the 1.52 billion search engine users worldwide conducted a Google search at least once. That’s 1.17 billion Google users, as opposed to 293 million users of Baidu and 292 million users of Yahoo’s search. Microsoft’s Bing was used by 267 million people in December, clearly distancing Yandex in terms of reach.
1.17 Billion People Use Google Search

Description
This chart shows the worldwide number of people using the top 5 search engines in December 2012.



















