Year	Percent change
1980	43.237
1981	5.204
1982	3.947
1983	2.582
1984	-2.591
1985	15.554
1986	-9.975
1987	-3.519
1988	18.728
1989	7.472
1990	16.833
1991	-5.105
1992	2.105
1993	2.385
1994	17.375
1995	25.559
1996	6.395
1997	15.133
1998	12.705
1999	-2.148
2000	1.867
2001	6.132
2002	0.238
2003	5.016
2004	0.003
2005	11.55
2006	4.559
2007	5.96
2008	-0.951
2009	-10.783
2010	13.702
2011	2.292
2012	-5.837
2013	-3.688
2014	-7.786
2015	-1.633
2016	6.807
2017	-0.154
2018	-2.1
2019	10.226
2020	3.559
2021	6.036
2022	5.574
2023	7.058
2024	5.791