Year	Percent change
1980	11.339
1981	11.718
1982	10.146
1983	6.835
1984	6.343
1985	4.662
1986	3.718
1987	3.979
1988	4.525
1989	4.78
1990	6.836
1991	2.167
1992	1.944
1993	0.872
1994	1.841
1995	2.038
1996	2.08
1997	1.98
1998	1.313
1999	2.051
2000	2.717
2001	2.312
2002	2.365
2003	2.002
2004	0.886
2005	1.676
2006	1.884
2007	1.657
2008	3.638
2009	1.042
2010	2.198
2011	2.656
2012	2.354
2013	0.522
2014	0.352
2015	0.226
2016	0.017
2017	1.058
2018	0.709
2019	1.1
2020	1.3
2021	1.5
2022	1.8
2023	2
2024	2