Year	Percent change
1980	5.11
1981	1.602
1982	-1.302
1983	0.603
1984	3.099
1985	3.65
1986	1.858
1987	1.582
1988	3.311
1989	4.392
1990	3.566
1991	-0.816
1992	-0.168
1993	-0.124
1994	1.324
1995	0.536
1996	0.533
1997	2.326
1998	2.933
1999	1.65
2000	4.077
2001	1.285
2002	0.186
2003	0.071
2004	2.622
2005	3.163
2006	4.076
2007	4.107
2008	2.111
2009	-2.228
2010	2.869
2011	1.837
2012	1.006
2013	1.881
2014	2.484
2015	1.267
2016	1.587
2017	1.676
2018	2.531
2019	1.058
2020	1.549
2021	1.6
2022	1.6
2023	1.6
2024	1.6