Year	Percent change
1980	2.601
1981	0.61
1982	1.8
1983	1.3
1984	1.4
1985	5
1986	3.114
1987	3.3
1988	6.308
1989	4.003
1990	4.324
1991	2.497
1992	3.273
1993	5.048
1994	4.001
1995	4.68
1996	4.462
1997	5.182
1998	3.644
1999	3.812
2000	2.503
2001	3.658
2002	5.165
2003	1.249
2004	2.34
2005	2.997
2006	2.497
2007	6.512
2008	4.142
2009	-1.538
2010	4.219
2011	5.614
2012	5.915
2013	3.934
2014	3.708
2015	3.813
2016	10.458
2017	9.867
2018	5.787
2019	5.92
2020	6.034
2021	6
2022	5.305
2023	4.997
2024	4.957