Google Analytics, a free product that allows online publishers to gather statistics about visitors to their sites, was used on 81 of the top 100 sites.

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The proposals, amendments to a large education bill, will seek to improve computer technology to meet the learning styles of girls, reduce sexual harassment in schools, gather statistics on girls' participation in high school sports and develop ways to help keep pregnant and parenting teens in school.

CNN: Gender equity legislation introduced on Capitol Hill

Nor has the government made any attempt to gather central statistics on the number of infringements detected or prosecutions made.

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Although firm statistics are hard to gather Firefox is currently thought to be used by about 15-17% of web users.

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