How to calculate annualized return over a number of days?

Noob question here sorry.

So I've some percentage returns: 1.4%, -5.6%, 7.8%, 0.2%, 1.7%, -3.5% but its spread out over a period of 1500 days to make life hell. How do I calculate an annualized return for a set of data like this?

Submitted February 17, 2016 at 07:44PM by asji4 http://ift.tt/1Kr6OkI