Year	Percent change
2001	3.589
2002	4.087
2003	8.017
2004	2.21
2005	1.612
2006	5.232
2007	8.639
2008	7.427
2009	-0.209
2010	5.178
2011	13.174
2012	10.935
2013	9.451
2014	0.849
2015	0.646
2016	-1.47
2017	0.523
2018	2.294
2019	2.468
2020	3.15
2021	3.65
2022	3.9
2023	4
2024	4