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Percentage of U.S. clicks by number of keywords
Subject	February 2010	March 2010	Month- over-month percentage change
One word	22.81%	22.98%	1%
Two words	22.85%	22.81%	0%
Three words	20.46%	20.32%	-1%
Four words	14.33%	14.27%	0%
Five words	8.54%	8.55%	0%
Six words	4.69%	4.71%	0%
Seven words	2.58%	2.59%	0%
Eight or morę words	EfZ!%	3.77%	1%
Notę: Data is based on four-week rolling penods (ending Feb. 27, 2010, and March 27, 2010) from the Hitwise sample of 10 million U.S. Internet u sers.
Source: Experian Hitwise