I looked again and I still cannot find where you posted the source of your claim for 73% of exports save for post number 152. If you would show me where you did that before that post, I will look at it.
I posted the page of that book. I thought that would be enough. Here is a link to the source.
https://books.google.com/books?id=rUcWAAAAYAAJ&pg=PA73&focus=viewport&vq=%24106,000,000
And