Does the world's growth go along with a Moodle sites reduction?

In a growing world with growing education needs, one would think that systems like Chamilo or Moodle would have a continuous growth ensured, year after year. Well, this is certainly true for Chamilo LMS (for now), as it is apparently gaining about 100,000 new users per month (average over the last 12 months), but I am a little in shock at how Moodle is (since a year or so) loosing a considerable amount of sites and users over the last 12 months.