The F18 number changed in the following years:

2002
2003
2004
2005
2006

The F16 number changed in:

2005
2006
2008

And the A-cat... it's the winner in this little race... it's number has changed every year from 2001 - 2008, excluding 2007 I can't find tables for 2007.

So Timbo... what was your point?

David Ingram
F18 USA 242
http://www.solarwind.solar

"Do or do not. There is no try." - Yoda
"Excuses are the tools of the weak and incompetent" - Two sista's I overheard in the hall
"You don't have to be a brain surgeon to be a complete idiot, but it helps"