Year	Percent change
1980	1.807
1981	-9.514
1982	7.154
1983	7.537
1984	7.278
1985	8.82
1986	-2.369
1987	1.916
1988	-3.383
1989	8.301
1990	-3.5
1991	5.284
1992	7.673
1993	13.635
1994	-6.159
1995	4.919
1996	16.587
1997	-5.988
1998	-2.517
1999	0.302
2000	-6.825
2001	3.853
2002	-0.671
2003	6.858
2004	6.417
2005	26.689
2006	20.983
2007	3.299
2008	10.256
2009	-3.654
2010	-1.733
2011	2.312
2012	2.78
2013	2.631
2014	4.632
2015	12.506
2016	14.06
2017	14.015
2018	8.554
2019	-4.395
2020	1.008
2021	5.717
2022	4.527
2023	3.985
2024	3.584