Year	Percent change
1980	2.91
1981	3.878
1982	2.579
1983	3.217
1984	5.304
1985	4.271
1986	5.405
1987	0.65
1988	13.168
1989	3.273
1990	4.806
1991	2.221
1992	7.097
1993	3.589
1994	-1.165
1995	6.798
1996	1.06
1997	3.741
1998	4.459
1999	2.107
2000	1.806
2001	1.662
2002	6.126
2003	7.344
2004	4.609
2005	3.025
2006	6.038
2007	3.064
2008	-0.546
2009	-2
2010	-2.331
2011	0.247
2012	1.299
2013	2.494
2014	0.243
2015	0.836
2016	0.83
2017	0.687
2018	1.959
2019	2.255
2020	2.439
2021	2.296
2022	2.308
2023	2.32
2024	2.332