Year	Percent change
1980	9.105
1981	-3.171
1982	8.549
1983	-11.945
1984	10.614
1985	9.861
1986	24.967
1987	12.583
1988	-0.074
1989	10.826
1990	17.991
1991	9.983
1992	4.483
1993	6.46
1994	15.551
1995	-5.448
1996	-1.091
1997	5.596
1998	6.698
1999	1.172
2000	-0.484
2001	2.811
2002	-2.377
2003	7.36
2004	9.809
2005	5.714
2006	9.343
2007	6.664
2008	3.671
2009	-4.28
2010	2.061
2011	12.257
2012	4.892
2013	4.677
2014	-0.29
2015	1.659
2016	-0.209
2017	2.511
2018	-2.685
2019	4.15
2020	6.897
2021	-0.074
2022	3.649
2023	3.682
2024	3.105