I'm glad to see there is no longer any confusion on the cause of the war.
Walt
I still don't think you read very carefully. Go back and look at what the article was saying.
Assuming you still believe your source, if you visit section U 207-212 you can find that the percentage of imports that duty was paid on in 1841 was 50%. By 1845 that had increased to 90%. By 1850 it was 91%.
Your source is really wacky.