The solution I'm currently working on is a subset of a folder, so I'm not sure how many lines of code are in it but the entire folder has 129662 lines of code (according to wc -l).
I just ran Visual Studio's command "Analyze Solution for Code Clones". Its final report:
257 Clone Groups | 571 Cloned Snippets | 14468 Lines of Cloned Code.
That's 11% code reuse. Only 89% to go!