The table and chart illustrate the total number of U.S. searchers and the proportion of searches in five distinct applications from November 2004 to September 2010.
Overall, it can be seen that the total quantity of U.S. searches increased significantly from 2004 to 2010. In the percentage of searches, Google saw a rise, which also marked the highest figure throughout the time. However, the statistics for Yahoo saw a downward trend, while the remaining figures were relatively stable up to 2010.
To begin with, the total number of U.S. searches started at 4.5 billion in November 2004 and ended at 16 billion in September 2010. During this time frame, the percentage of searches using Google rose gradually from around 35% in November 2004 to about 45% in July 2006, before increasing substantially to approximately 65% in April 2009; this figure remained slightly unchanged to the end of the time span. Meanwhile, the period between November 2004 and April 2008 saw a steep decline in the proportion of searches on Yahoo, from just higher than 31% to around 22%; this figure was stable up to May 2009, before decreasing to around 20% in September 2010.
In terms of Microsoft, there was a slight decline from approximately 15% in November 2004 to around 10% in May 2009, before rising back to around 14% at the end of the timeframe. While that of Ask Jeeves saw a gradual fall from nearly 10% at the start to around 4% in September 2010, despite a slight increase to higher than 10% in July 2005. Finally, the percentage of searches using AOL remained unchanged over time, between around 5% and about 7%.