Year	Percent change
1980	16.399
1981	2.533
1982	2.816
1983	8.826
1984	1.653
1985	14.528
1986	6.532
1987	11.568
1988	3.9
1989	3.659
1990	7.093
1991	15.134
1992	5.572
1993	6.318
1994	7.693
1995	3.552
1996	11.372
1997	14.226
1998	-0.661
1999	4.522
2000	9.833
2001	3.589
2002	0.745
2003	-1.52
2004	4.031
2005	3.053
2006	2.024
2007	1.87
2008	3.794
2009	3.461
2010	7.596
2011	0.542
2012	6.959
2013	6.281
2014	6.977
2015	5.665
2016	7.069
2017	2.023
2018	4.42
2019	0.403
2020	2.371
2021	2.848
2022	3.032
2023	3.058
2024	3.046