Year	Percent change
1980	-0.3
1981	1.679
1982	3.023
1983	2.362
1984	7.516
1985	0.3
1986	2.382
1987	3.9
1988	9.739
1989	7.832
1990	4.744
1991	2.288
1992	4.262
1993	11.5
1994	8.3
1995	8.9
1996	3.717
1997	9.994
1998	4.759
1999	4.486
2000	11.807
2001	2.134
2002	7.974
2003	-0.154
2004	7.088
2005	4.202
2006	5.089
2007	4.875
2008	-2.481
2009	-10.911
2010	8.442
2011	4.351
2012	-0.887
2013	2.377
2014	1.606
2015	1.333
2016	3.486
2017	1.396
2018	3.35
2019	2.827
2020	2.93
2021	2.728
2022	2.662
2023	2.65
2024	2.621