Between 2007 and 2010 the euro area accounted for, on average, 21% of the global stock of foreign assets and liabilities, placing it slightly ahead of the United States. I wonder what does this sentence exactly refer to? Does it mean Europe invest outshore on 21% of the total global assets and liabilities？ Or 21% of European assets and liablitites are foreign investment? Or 21% of foreign investment goes to Europe? Thanks a lot.