Year	Percent change
1980	7.593
1981	-11.65
1982	2.513
1983	-0.244
1984	13.152
1985	12.631
1986	24.568
1987	13.407
1988	-1.594
1989	9.794
1990	18.623
1991	10.657
1992	7.981
1993	11.825
1994	15.551
1995	-5.448
1996	-1.091
1997	5.596
1998	6.698
1999	1.172
2000	-1.815
2001	1.991
2002	-3.997
2003	3.574
2004	8.169
2005	9.425
2006	6.782
2007	9.53
2008	9.01
2009	5.208
2010	0.334
2011	14.209
2012	5.12
2013	3.272
2014	2.096
2015	-2.058
2016	-2.464
2017	0.455
2018	-2.685
2019	4.15
2020	6.897
2021	-0.074
2022	3.649
2023	3.682
2024	3.105