No, you are indulging in your own non-sequitur.
What the South imported was both European as well as American products.
The 83% referred to Southern grown exports as a portion of total US exports to Europe.
You might try actually reading the article that started this thread. Benson's claim is that the Southern states "chose to withdraw from a Union for which they were paying 83% of all the expenses, while getting precious little back for it, save insults from the North." In other words, generating 83% of all revenue. When Vigilanteman questions such an outrageous claim you referenced the "Statistical History of the United States". So are you now saying that there is no breakdown of imports by region in there? That the South did not generate 83% of the tariff revenue? That you were, in fact, engaging in non-sequitur all along?