Moving product to a new List Price

Dear all,

In 2015 we get a list of Product Items which has been attached to a PriceList named PR_2015.
We have issue, quote and invoice with that configuration.

Now in 2016, our price list have change but for the same PRODUCTS than in 2015. So I need to create a new PR_2016 list price.

But now the question I have is the following :

All our product range need to be part now of the PR_2016 price List. How do we add those products to our new list price as they already belongs to PR_2015 price list ?

Can we simply switch them or do we muts create new product each time of new price list ( which would be stupid in my mind )

thanks for advise

regards

serge