Year	Percent change
1980	6.325
1981	6.807
1982	5.44
1983	3.335
1984	5.665
1985	3.19
1986	1.737
1987	1.408
1988	1.868
1989	2.249
1990	2.779
1991	3.116
1992	3.426
1993	3.234
1994	2.711
1995	1.611
1996	1.771
1997	1.167
1998	0.818
1999	0.513
2000	1.956
2001	2.302
2002	1.684
2003	1.3
2004	1.964
2005	2.1
2006	1.689
2007	2.2
2008	3.228
2009	0.405
2010	1.693
2011	3.542
2012	2.57
2013	2.118
2014	1.468
2015	0.808
2016	0.972
2017	2.23
2018	2.119
2019	1.762
2020	1.988
2021	2.088
2022	2.1
2023	2.012
2024	2