Since a lot of code is re-used, many programmers are encountered to work with existing code in which they encounter lot's of compiler warnings. To solve these compiler warnings does take effort which seems not always available. To get better insight on how solving compiler warnings contributes to the total efficiency in software development I am very interested in data showing what % of unsolved compiler warnings results in real run-time bugs in later stages of the development.

Is anyone aware about these kind of data and where to find?