Year	Percent change
1980	7.969
1981	4.279
1982	1.7
1983	4.628
1984	1.253
1985	-2.123
1986	3.522
1987	10.117
1988	2.156
1989	4.401
1990	-5.454
1991	0.945
1992	11.221
1993	7.365
1994	2.6
1995	5.685
1996	5.978
1997	8.885
1998	6.714
1999	5.94
2000	4.662
2001	2.46
2002	4.495
2003	-1.346
2004	2.57
2005	9.428
2006	9.174
2007	7.416
2008	3.21
2009	0.946
2010	8.34
2011	3.133
2012	2.717
2013	4.875
2014	7.636
2015	7.033
2016	6.612
2017	4.552
2018	7
2019	5.113
2020	4.99
2021	5.037
2022	5
2023	5
2024	5