In the Betawiki statistics, a message was localised when it was localised. However, once a message changes, it gets fuzzied, indicating that the message needs some more work.
So far the statistics included these fuzzied messages. Today I noticed that Siebrand changed the way the statistics are compiled; no more fuzzies, we now only count the localised messages that completely serve their purpose..
This puts downward pressure on Siebrand's goals for the MediaWiki localisation for 2008. Luckily there is another half a year to go :)