Year	Percent change
1980	3.305
1981	4.807
1982	-2.287
1983	4.452
1984	6.791
1985	2.636
1986	-0.03
1987	4.198
1988	9.291
1989	9.596
1990	5.303
1991	5.709
1992	5.032
1993	0.585
1994	9.757
1995	9.582
1996	3.008
1997	13.179
1998	8.707
1999	4.671
2000	12.693
2001	3.257
2002	1.714
2003	-0.215
2004	5.001
2005	3.799
2006	6.897
2007	1.497
2008	-0.718
2009	-12.424
2010	9.851
2011	5.842
2012	1.597
2013	1.247
2014	1.663
2015	4.429
2016	1.41
2017	4.942
2018	3.672
2019	4.322
2020	3.698
2021	3.77
2022	3.513
2023	3.383
2024	3.321