Question 1032604: Attempting to create Leontief Model (as part of an open-ended project on the model)—where can I find the appropriate data? Answer by fractalier(6550) (Show Source):
You can put this solution on YOUR website! I just did a Google search on Leontief Model data...and came up with this set of data...
http://www.math.wustl.edu/~freiwald/leontiefd.pdf
I'm sure you can find more...