How to display product price with and without tax at a time in product list for Prestashop?

In the product list I need to display the product price with and without tax at a time.

I am using the version 1.6 of Prestashop.

Right now the price including tax is displayed in the product list. I want to display the price excluding tax as well.

How can I do that? I have searched for solution and was not able to find a working solution for me.