"and $31 million in northern imports only coincidentally adds up to the $362 million in foreign imports stated in the Treasury Report"
Where in the Treasury Report do you find $362?
I posted the Treasury Report in post #700. You'll find the information halfway down the third column of the first page. "The exports of the last fiscal year reached the enormous sum of $400,122,296 and the imports for the same period were $362,163,941, yielding a revenue from customs of $53,187,511.87."