I have asked the Bundesnetzagentur (Federal Network Agency) for some statistics.
You can see the number of licensees decreasing from 2012 to 2014, but the number of examination increasing.
That’s because the old amateurs die and there are not enough young amateurs to keep constant the number of radio amateurs.
You can see that the number of training call signs (needed in Germany to let non-hams transmit) increasing. A few have learned, that it is important to get (and preserve) the youth. 🙂
Have fun with it! 🙂
(Please note that it is in German, but there are only a few words. With help of Google Translate you’ll be able to understand it.)