Year	Percent change
2001	-0.47
2002	0.988
2003	0.394
2004	2.051
2005	4.163
2006	3.547
2007	4.616
2008	12.56
2009	-1.011
2010	0.383
2011	8.683
2012	1.226
2013	3.493
2014	4.237
2015	-0.816
2016	0.413
2017	0.472
2018	2.8
2019	2.35
2020	2
2021	2
2022	2
2023	2
2024	2