Year	Percent change
1993	171.473
1994	-4.942
1995	13.987
1996	6.082
1997	6.045
1998	-6.482
1999	-17.289
2000	3.544
2001	5.297
2002	12.049
2003	21.692
2004	11.184
2005	4.994
2006	34.288
2007	63.136
2008	10.732
2009	-18.694
2010	-8.601
2011	17.926
2012	25.643
2013	10.617
2014	-16.743
2015	-5.572
2016	-8.478
2017	-18.194
2018	14.266
2019	10.603
2020	4.912
2021	6.377
2022	2.663
2023	2.167
2024	2.06