Since you are returning everything in one data set you need to use filters on the tablii. Here's an article on filters that should get you started.
For data region 1 you do want a table type control.
For data regions 2-4 I'd use a matrix and I'd fill out my data set so that it always contains all 12 months with either NULL or 0 in the numeric columns depending on what the business wants to see.
Jack Corbett
Consultant - Straight Path Solutions
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