Year	Percent change
1993	-11.099
1994	-21.401
1995	-12.498
1996	-4.368
1997	1.7
1998	5.3
1999	3.699
2000	8.3
2001	10.2
2002	9.1
2003	10.2
2004	10.6
2005	6.7
2006	7
2007	7.8
2008	7.9
2009	3.9
2010	6.5
2011	7.4
2012	7.5
2013	7.4
2014	6.7
2015	6
2016	6.9
2017	7.1
2018	7
2019	5
2020	4.5
2021	4.5
2022	4.5
2023	4
2024	4