Year	Percent change
1980	4.444
1981	-0.279
1982	0.595
1983	0.312
1984	2.466
1985	1.652
1986	1.823
1987	2.307
1988	4.723
1989	3.469
1990	3.137
1991	1.833
1992	1.531
1993	-0.962
1994	3.227
1995	2.385
1996	1.593
1997	3.71
1998	1.975
1999	3.564
2000	3.634
2001	0.811
2002	1.781
2003	0.774
2004	3.635
2005	2.094
2006	2.506
2007	3.449
2008	0.783
2009	-2.253
2010	2.744
2011	1.798
2012	0.235
2013	0.201
2014	1.255
2015	1.717
2016	1.489
2017	1.693
2018	1.434
2019	1.291
2020	1.39
2021	1.474
2022	1.505
2023	1.518
2024	1.513