I don’t usually count them because if I DNF a book it will usually be a very early decision. I still rate and review on Goodreads, and click it as ‘read’ - but don’t put in a ‘completed’ date, so it doesn’t count towards my yearly total.
I like the Goodreads yearly self-challenge, because otherwise I might waste time and not read as much as I would like.
The Stand by Stephen King