Year	Percent change
1980	0.003
1981	0
1982	0
1983	0
1993	4.868
1994	-8.56
1995	-3.519
1996	-1.743
1997	15.762
1998	6.844
1999	18.905
2000	20.871
2001	1.444
2002	5.717
2003	1.272
2004	-8.257
2005	8.535
2006	-0.247
2007	2.062
2008	11.908
2009	-18.581
2010	6.852
2011	12.655
2012	4.432
2013	10.171
2014	12.894
2015	8.76
2016	-9.389
2017	2.465
2018	7.703
2019	7.708
2020	7.819
2021	8.342
2022	8.773
2023	8.836
2024	6.286