Upgrade NAV2013 to NAV2016

Hi Experts!

We want to do technical upgrade of our NAV2013 (R1) database to NAV2016 (code will not be upgraded).
Is that possible in one step or we have to go through path: NAV2013R2->NAV2015->NAV2016?
What is the quickest way to do that? (we need downtime as little as possible.

Thanks!