Year	Percent change
1980	12.819
1981	-3.406
1982	14.832
1983	1.704
1984	-0.71
1985	17.253
1986	10.569
1987	5.725
1988	5.404
1989	14.44
1990	5.7
1991	9.6
1992	13.9
1993	3.7
1994	9.8
1995	11.5
1996	11.995
1997	11.026
1998	7.82
1999	5.841
2000	4.882
2001	8.384
2002	0.8
2003	5.875
2004	14.839
2005	2.328
2006	3.791
2007	6.575
2008	-1.846
2009	-3.143
2010	0.333
2011	4.339
2012	2.066
2013	3.815
2014	1.674
2015	-1.279
2016	-0.24
2017	-1.919
2018	6.427
2019	1.602
2020	3.277
2021	4.015
2022	3.724
2023	3.443
2024	3.3