Make chart content distinctive on template background
It's always a good practice when designing your template background to take into consideration how your content will look in your template. This template is nice but it obscures the table, making it necessary to place a backing behind the table or to add fill colors to all of the table cells.
The slide below has a semitransparent backing behind the table, which makes the table contents more distinct but also allows for some of the slide background to be visible. This is a good option if you have a template with a busy background.