Year	Percent change
1980	10.027
1981	10.684
1982	7.172
1983	8.54
1984	8.801
1985	-0.687
1986	1.328
1987	10.757
1988	11.115
1989	10.183
1990	10.044
1991	6.687
1992	7.088
1993	11.537
1994	10.925
1995	7.028
1996	7.532
1997	8.291
1998	-2.225
1999	6.095
2000	8.898
2001	-0.952
2002	4.212
2003	4.435
2004	9.549
2005	7.489
2006	8.86
2007	9.112
2008	1.788
2009	-0.603
2010	15.24
2011	6.516
2012	4.271
2013	4.952
2014	4.116
2015	2.505
2016	2.844
2017	3.929
2018	3.231
2019	2.312
2020	2.362
2021	2.5
2022	2.638
2023	2.581
2024	2.568