Year	Percent change
1996	9.528
1997	8.109
1998	4.18
1999	4.002
2000	17.983
2001	13.537
2002	5.008
2003	10.012
2004	29.892
2005	13.049
2006	11.258
2007	13.754
2008	2.713
2009	-11.712
2010	14.865
2011	6.609
2012	1.978
2013	0.543
2014	9.98
2015	7.218
2016	3.095
2017	5.908
2018	5.927
2019	5.194
2020	4.7
2021	4.7
2022	4.7
2023	4.65
2024	4.65