Year	Percent change
1980	-12.265
1981	18.371
1982	6.533
1983	-1.461
1984	62.7
1985	18.317
1986	-4.589
1987	0.521
1988	13.555
1989	-15.107
1990	18.978
1991	10.707
1992	14.516
1993	-9.994
1994	-12.083
1995	5.87
1996	-3.29
1997	4.992
1998	-1.062
1999	-3.856
2000	2.807
2001	9.338
2002	11.447
2003	10.933
2004	7.252
2005	6.354
2006	3.227
2007	0.476
2008	17.792
2009	11.747
2010	0.484
2011	-1.063
2012	4.95
2013	6.609
2014	-1.351
2015	-4.98
2016	12.833
2017	11.073
2018	6.952
2019	5.91
2020	5.698
2021	6.091
2022	5.829
2023	5.866
2024	5.611