Year	Percent change
1999	32.181
2000	27.198
2001	3.264
2002	-4.939
2003	17.083
2004	18.009
2005	-8.175
2006	19.74
2007	31.718
2008	15.527
2009	3.213
2010	18.83
2011	13.393
2012	4.978
2013	12.509
2014	4.814
2015	12.486
2016	6.285
2017	16.969
2018	3.059
2019	3.92
2020	6.339
2021	5.743
2022	5.719
2023	5.857
2024	6.879