In March 1963, Ironman was introduced in issue 39 of the comic book Tales of Suspense. The original price for that issue was $0.13. By March 2016, 53 years later, the value of this comic book, given the condition it's in, had risen to $10,500. What annual rate of interest would you have earned if you had bought the comic book in 1963 and sold it in 2016?