Year	Percent change
1980	8.755
1981	8.145
1982	8.097
1983	7.159
1984	5.348
1985	4.023
1986	0.587
1987	1.448
1988	1.923
1989	3.601
1990	3.495
1991	2.785
1992	2.184
1993	2.464
1994	1.988
1995	1.227
1996	2.14
1997	0.884
1998	0.692
1999	2.051
2000	2.964
2001	1.925
2002	1.333
2003	1.634
2004	2.01
2005	2.759
2006	2.073
2007	3.111
2008	2.699
2009	0.333
2010	3.382
2011	3.185
2012	2.082
2013	1.167
2014	-0.391
2015	1.45
2016	2.204
2017	2.059
2018	2.198
2019	1.312
2020	2.098
2021	1.74
2022	1.939
2023	1.949
2024	1.969