Year % of relevant age group 1985 4.60600996017456 1986 3.83127999305725 1987 3.20939993858337 1988 2.74047994613647 1989 3.51427006721497 1990 3.46743988990784 1991 4.08089017868042 1992 3.89191007614136 1993 3.73493003845215 1994 5.26511001586914 1998 4.76916980743408 2000 6.36314010620117 2001 7.36808013916016 2003 11.1814498901367 2004 12.320460319519 2005 14.7905197143555 2006 17.2323608398438 2007 22.0816593170166 2009 25.2860908508301 2010 26.9240703582764 2011 24.5728092193604 2012 29.0207996368408 2013 28.0442504882812 2014 27.7656707763672 2015 21.3579998016357 2018 28.7430000305176 2019 29.5830001831055 2020 30.0143203735352 2021 30.7569999694824