Year	Percent change
1996	3.08
1997	2.801
1998	1.453
1999	3.671
2000	-12.257
2001	1.765
2002	4.159
2003	2.228
2004	2.816
2005	3.799
2006	2.468
2007	9.9
2008	-1.82
2009	6.766
2010	-0.694
2011	6.119
2012	-3.789
2013	0.086
2014	2.224
2015	-0.921
2016	-0.338
2017	-0.313
2018	3.731
2019	1.004
2020	2.682
2021	2.073
2022	2.132
2023	2.156
2024	2.162