Year	Percent change
1996	19.625
1997	12.568
1998	15.624
1999	-10.206
2000	3.695
2001	15.581
2002	10.928
2003	19.345
2004	4.669
2005	17.67
2006	9.622
2007	34.974
2008	19.858
2009	-15.942
2010	4.444
2011	-2.263
2012	5.263
2013	10.34
2014	2.759
2015	-10.513
2016	8.26
2017	22.176
2018	7
2019	2.622
2020	2.386
2021	3.908
2022	4.515
2023	5.093
2024	4.51