Determine the sources of capital for Canon Inc. (ticker: J:CN@N) in each of the last fiv-e years. How much capital was raised through internal sources, and how much was raised through external sources? Compare the sources of capital for Canon to those of Xerox Corp. (U: XRX). Does one company appear to depend more heavily on internal sources rather than external sources, or vice versa? What are some possible reasons for this?