Year	Percent change
1989	5.609
1990	3.951
1991	6.077
1992	4.217
1993	6.109
1994	4
1995	4.1
1996	-1.667
1997	2.538
1998	4.726
1999	0.43
2000	1.033
2001	7.643
2002	0.83
2003	1.273
2004	-0.662
2005	-0.633
2006	3.08
2007	0.037
2008	24.237
2009	-1.307
2010	-1.923
2011	-0.828
2012	-3.83
2013	0.832
2014	3.116
2015	0.633
2016	0.748
2017	2.499
2018	1.864
2019	2.106
2020	2.475
2021	2.451
2022	2.361
2023	2.543
2024	2.502