Year	Percent change
1996	18.539
1997	-5.84
1998	19.977
1999	4.488
2000	8.596
2001	28.887
2002	30.189
2003	18.572
2004	-0.773
2005	15.559
2006	3.35
2007	8.197
2008	-15.322
2009	-4.671
2010	29.615
2011	5.761
2012	7.589
2013	9.539
2014	8.217
2015	16.28
2016	19.944
2017	13.766
2018	-0.902
2019	8.64
2020	4.622
2021	4.088
2022	4.206
2023	5.046
2024	4.281