Good graphics.
I discovered the map long before I discovered the tabulation of export values. The map came from a website called "deadconfederates.com" and was created to debunk the theory that the South had any significant economic concerns regarding tariffs.
The map, showing that most of the tariff revenues were paid by New York, was intended to demonstrate that the South paid very little in the way of tariffs, and so the cost of running the government was born mostly by the North. It was intended to debunk "tariffs" as a valid cause of the war.
Then I ran across the fact (from various sources) that the South produced the vast bulk of all export value, and I suddenly realized this was a very serious conundrum.
If the South was producing almost all the money to pay for imports, how than was all the revenue ending up in New York? "I smell a skunk." I thought.
What I had done was to stumble on what I believe to be the actual cause of the war. Money. Not slavery, money. Lots and lots of money that would have been lost to the North if the South became independent.
*THAT* is why the war started.