Year	Percent change
1994	10.893
1995	2.014
1996	9.869
1997	15.796
1998	23.76
1999	-0.519
2000	9.736
2001	-2.532
2002	3.328
2003	-18.108
2004	-7.636
2005	15.438
2006	13.653
2007	7.625
2008	4.59
2009	-9.583
2010	34.601
2011	-0.155
2012	2.052
2013	-4.536
2014	5.725
2015	18.861
2016	9.054
2017	-3.364
2018	4.358
2019	4.794
2020	5.548
2021	5.323
2022	5.201
2023	5.252
2024	5.178