Year	Percent change
1980	6.838
1981	8.46
1982	5.7
1983	2.696
1984	1.142
1985	1.129
1986	1.897
1987	4.491
1988	4.822
1989	3.3
1990	3.012
1991	4.378
1992	3.091
1993	-0.857
1994	1.512
1995	2.979
1996	7.025
1997	2.703
1998	2.82
1999	2.194
2000	1.61
2001	1.585
2002	0.173
2003	2.249
2004	6.768
2005	8.875
2006	11.79
2007	13.672
2008	15.12
2009	-4.876
2010	-2.406
2011	2.036
2012	1.786
2013	3.199
2014	3.358
2015	1.814
2016	2.677
2017	0.395
2018	0.223
2019	0.131
2020	3.727
2021	2.318
2022	2.015
2023	1.991
2024	1.967