Year	Percent change
1980	-0.915
1981	-3.403
1982	8.771
1983	-4.36
1984	16.092
1985	10.397
1986	3.625
1987	12.119
1988	7.3
1989	3.29
1990	7.513
1991	12.996
1992	6.3
1993	8.409
1994	7.939
1995	5.58
1996	10.285
1997	11.961
1998	0.22
1999	4.724
2000	11.59
2001	3.024
2002	0.783
2003	-1.114
2004	3.702
2005	3.381
2006	3.407
2007	3.406
2008	4.399
2009	1.988
2010	5.717
2011	-0.144
2012	5.412
2013	5.823
2014	6.931
2015	6.535
2016	6.79
2017	3.445
2018	5.011
2019	0.981
2020	2.366
2021	2.881
2022	3.079
2023	3.116
2024	3.102