That really depends on your definition of "composition." I've written hundreds of pieces and heard many of them played, yet have none of my compositions published.
34. All different kinds of genres. Mainly neo-classical and "baroque"-ish type sounds. My compositions are different... very different. I use synths in my orchestral pieces.
Historically correct? No. But I bet if Beethoven got his little paws on a Korg before he lost his hearing, we'd be listening to some neat things by now.
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ETA- not that his stuff isn't absolutely wonderful the way it is. ;)
For those of us who are not geniuses, perhaps one in ten compositions, or maybe one in thirty, turn out to be reasonably good. Also, consider that the more hours you spend at the task, the better you become. There's no way around it, composing music (of any variety) is a very time consuming task.
It doesn't hurt to take a sort of "natural selection" approach to your own compositions, and keep doing them all the time; occasionally you'll do a great one, which will stand out clearly over the others. You have to face the reality that the others won't get as much attention Even the great composers of history produce a lot more than they're ever particularly well-known for.
Also, people work at different rates. At the moment this is all I do, but I still only get through about 10-20 (fully completed) a year (at most).
searching...
Even the great composers of history produce a lot more than they're ever particularly well-known for.