SQL Server 2012 :: Sales Over Years - Retrieve Values In Single Query For Multiple Years And Grand Total?

I need to list customers in a table that represents sales over the years.

I have tables:

Customers -> id | name |...
Orders -> id | idCustomer | date | ...
Products -> id | idOrder | unitprice | quantity | ...

I am using this SQL but it only gets one year:

SELECT customers.name , SUM(unitprice*qt) AS total
FROM Products
INNER JOIN Orders ON Orders.id = Products.idOrder
INNER JOIN Customers ON Customers.id = Orders.idCustomer
WHERE year(date)=2014
GROUP BY customers.name
ORDER BY 2 DESC

I need something like this:

customer | total sales 204 | total sales | 2015 | total sales (2014 + 2015)
--------
customer A | 1000$ | 2000$ | 3000$
customer B | 100$ | 100$ | 200$

Is it possible to retrieve these values in a single SQL query for multiple years and grand total?