The US Patent and Trademark Office (uspto.gov) reports that in 2011, it granted 224,505 patents for inventions

Question:

The US Patent and Trademark Office (uspto.gov) reports that in 2011, it granted 224,505 patents for inventions (out of 503,582 applications). In 2000, it granted 157,494 patents for inventions (out of 295,926 applications). Use the geometric mean to determine the average annual growth rate in patents granted for inventions during this period.