Year	Percent change
1993	1996.63
1994	1959.70
1995	243.964
1996	39.299
1997	63.107
1998	181.749
1999	251.196
2000	107.495
2001	46.121
2002	34.792
2003	25.373
2004	14.44
2005	7.94
2006	6.62
2007	12.072
2008	13.3
2009	10.113
2010	9.927
2011	108.686
2012	21.778
2013	16.466
2014	16.22
2015	11.97
2016	10.576
2017	4.59
2018	5.642
2019	5.043
2020	4.977
2021	4.016
2022	4.019
2023	4.019
2024	4.019