Year	Percent change
1986	-2.778
1987	0.311
1988	-0.36
1989	2.206
1990	1.085
1991	3.148
1992	4.759
1993	0.301
1994	3.149
1995	4.477
1996	2.881
1997	-1.475
1998	-0.56
1999	3.053
2000	2.853
2001	2.745
2002	3.872
2003	2.903
2004	0.504
2005	0.388
2006	4.412
2007	0.12
2008	-1.979
2009	-1.819
2010	2.652
2011	3.744
2012	0.913
2013	-2.125
2014	-2.508
2015	-0.405
2016	-2.465
2017	1.329
2018	-0.233
2019	4.801
2020	6.633
2021	7.601
2022	5.919
2023	3.877
2024	2.191