Great graph work OK 12 !!! It will be interesting to see what the written report says and what others here provide. I have a comment but will wait on the others first.

Here is one comment (hint) assuming you don't have the same graphs/info for the BG/RES. See if you think it fits. Slide the scale back 11-12 inches and the numbers match your BG/RES size distribution (not what you catch but what the survey shows). Lots of small 1-3 in BG and not so many 3-5 in BG (another hint).