Year	Percent change
2001	1.452
2002	7.712
2003	-3.105
2004	-1.676
2005	-4.118
2006	2.891
2007	6.347
2008	7.959
2009	-4.382
2010	-3.09
2011	7.89
2012	-3.836
2013	4.577
2014	1.348
2015	9.143
2016	3.035
2017	3.242
2018	4.284
2019	4.072
2020	4.38
2021	4.244
2022	4.143
2023	3.894
2024	2.746