Generate graph from data

Hello,

I dont have a lot of experience with powerbi. 

I have a table with different product and a scrap reject rate. I need to create a graph that show the trend of scrap reject rate of severity per month per product. I have 5 types of severities so I need to have 5 graph for the las 12 months per product so probably I will need to use a slicer to change from product to product. The months that are not shown are months without rejects but I need to shown them on the graph. show the months that does not have values.

Data example