Year	Percent change
1998	21.748
1999	4.453
2000	27.684
2001	11.031
2002	24.993
2003	33.016
2004	26.999
2005	24.019
2006	26.177
2007	19.48
2008	9.783
2009	-11.183
2010	28.844
2011	10.54
2012	6.79
2013	9.583
2014	4.259
2015	-2.347
2016	1.733
2017	8.988
2018	3.631
2019	3.1
2020	4
2021	3.4
2022	3.2
2023	3
2024	2.8