Year	Percent change
1996	8.78
1997	8.629
1998	10.7
1999	2.16
2000	3.763
2001	4.686
2002	1.881
2003	0.119
2004	2.749
2005	1.878
2006	2.523
2007	2.873
2008	6.318
2009	1.029
2010	1.473
2011	1.917
2012	3.279
2013	1.439
2014	0.352
2015	0.326
2016	0.667
2017	2.451
2018	2.158
2019	2.324
2020	2
2021	2
2022	2
2023	2
2024	2