You can use it to measure general trends (lots of people are talking about Game of Thrones right now) or compare specific search terms over time.
Ị nwere ike iji ya tụọ usoro izugbe (ọtụtụ ndị na-ekwu okwu banyere Game nke n'ocheeze ugbu a) ma ọ bụ tụnyere ụfọdụ ọchụchọ na oge.