Year	Percent change
1993	2165.00
1994	854.585
1995	60.388
1996	28.638
1997	11.321
1998	1.88
1999	18.095
2000	9.81
2001	6.449
2002	6.6
2003	6.751
2004	6.749
2005	7.6
2006	8.4
2007	18.751
2008	9.5
2009	6.151
2010	7.8
2011	7.4
2012	6
2013	4.8
2014	7.43
2015	13.6
2016	8.5
2017	7.1
2018	5.3
2019	5.47
2020	4.51
2021	4.37
2022	4.13
2023	4.03
2024	4.03