foreign exports in industry report

Hi, Doug, I have a general question regarding foreign exports in the industry by industry explore report. How the households has foreign exports? They are EXPORTING something to the foreign countries? Also, I am calculating the percentage of exports in one industry. The way I did is adding all the numbers under that industry, such as household demand, government demand, inventory (I should find the beginning inventory, but that involves another year), domestic exports and foreign exports and then, dividing the foreign exports to that total. I don't include the capital, because I am thinking the capital means the capital investment in that industry. Can you tell me if this is correct? Thank you! Mike Jin Chicago