Year	Percent change
1993	534.18
1994	1568.33
1995	304.597
1996	53.961
1997	70.857
1998	28.981
1999	29.103
2000	25.006
2001	27.251
2002	27.291
2003	12.494
2004	7.325
2005	10.703
2006	13.109
2007	11.154
2008	13.128
2009	12.298
2010	12.304
2011	12.447
2012	11.9
2013	11.7
2014	9.079
2015	8.464
2016	7.982
2017	12.546
2018	17.899
2019	16.463
2020	11.901
2021	9.266
2022	8.075
2023	7.654
2024	7.505