Looking through my Great Submission Tracking Spreadsheet, I noticed a few interesting facts:
I've only received acknowledgements from 1 in 3 submissions. Most English language subs are acknowledged, but most other languages aren't. I was under the impression that I made more foreign subs than English; this is because you can sub to as many diffeent languages at the same time as you want. As I generaly have to wait months before writing the sub off - because of not getting a reply - it turns out that over a year the foreign subs average out at only 1/4 of my total.
I currently have 6 new stories out under submission, but with reprints, anthologies, foreign languages and podcasts I have a total of 36 subs outstanding. Lucky I have my spreadsheet to keep track of it all!