New stats released today from WebSideStory show Google has continued to gain in popularity every year since 2001, while Yahoo is shown to have a continual decline. MSN has had declines for the past two years.
The data shows the percentage of traffic sent to US web sites that use the WebSideStory tracking system as of the first Monday in June, going back to 2001. Google's hit an all time high this year with 52.2 percent of referrals sent.
Figures are available in chart format via this press release, and here's a graphical look at them:
The company also released figures on how Google is doing as a referral source for selected countries, as of the first Monday in June this month, June 6.
Sites in Germany are said to receive nearly all their search referral traffic from Google, while Japan has the lowest referral percentage -- though still nearly 50 percent there:
For more information about WebSideStory and past data releases, see the WebSideStory's StatMarket Search Engine Ratings page within Search Engine Watch.
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