From Adult rateĀ  Development rateĀ  16-17 y.o. rate Apprentice rate 04/01/1999 3.60 3.00 - - 10/01/2000 3.70 3.20 - - 10/01/2001 4.10 3.50 - - 10/01/2002 4.20 3.60 - - 10/01/2003 4.50 3.80 - - 10/01/2004 4.85 4.10 3.00 - 10/01/2005 5.05 4.25 3.00 - 10/01/2006 5.35 4.45 3.30 - 10/01/2007 5.52 4.60 3.40 - 10/01/2008 5.73 4.77 3.53 - 10/01/2009 5.80 4.83 3.57 - 10/01/2010 5.93 4.92 3.64 2.50 10/01/2011 6.08 4.98 3.68 2.60 10/01/2012 6.19 4.98 3.68 2.65 10/01/2013 6.31 5.03 3.72 2.68