1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 |
2.1 Years (the 2 years are normal) | 2.2 | 2.4 | 2.4 | 2.5 | 3.1 the rise starts | 3.6 | 3.7 | 4.3 | 6.0 | 8.3! |