Today, Google has confirm that 15% of new users searches on Google daily basis which have never been search before. Google said in 2013 and now has restated that Google announced Project Owl at 24 April 2017.

Google wrote:

Last year, Google told they maintain over 2 trillion searches every year. In 2012, Google claimed they got 1.2 trillion searches every year. Google didn’t give more distinct number today, Google saying yearly searches on Google are in “trillions”.

Google was saying that 15% of searches on Google seems are brand new, that’s why search is a challenge in general: Back in 2017, that figure was near to 20 to 25 percent.