Year	Percent change
1980	-0.779
1981	4.365
1982	3.429
1983	4.758
1984	6.823
1985	4.258
1986	6.941
1987	10.027
1988	2.121
1989	0.253
1990	9.255
1991	0.926
1992	5.984
1993	8.042
1994	-5.456
1995	7.19
1996	7.007
1997	7.528
1998	3.092
1999	-3.389
2000	6.64
2001	-5.962
2002	6.43
2003	5.608
2004	9.644
2005	9.01
2006	7.11
2007	5.03
2008	0.845
2009	-4.704
2010	8.487
2011	11.113
2012	4.79
2013	8.491
2014	5.167
2015	6.086
2016	3.184
2017	7.441
2018	2.567
2019	-2.537
2020	2.541
2021	2.961
2022	3.008
2023	3.492
2024	3.501