Year	Percent change
2001	6.03
2002	5.654
2003	5.48
2004	2.532
2005	1.033
2006	6.644
2007	7.668
2008	6.231
2009	0.978
2010	8.022
2011	15.493
2012	9.202
2013	4.034
2014	0.306
2015	-0.61
2016	0
2017	0.614
2018	2.136
2019	2.8
2020	3.5
2021	3.8
2022	4
2023	4
2024	4