Year	Percent change
1980	1.2
1981	12.178
1982	5.854
1983	8.158
1984	14.301
1985	3.821
1986	1.668
1987	7.108
1988	4.49
1989	11.667
1990	6.991
1991	9.011
1992	5.328
1993	9.714
1994	14.713
1995	19.361
1996	26.416
1997	31.063
1998	12.471
1999	3.522
2000	25.523
2001	7.868
2002	-1.258
2003	10.574
2004	8.177
2005	13.253
2006	2.744
2007	8.412
2008	24.407
2009	10.557
2010	6.496
2011	9.583
2012	18.176
2013	7.938
2014	4.417
2015	5.553
2016	5.527
2017	16.643
2018	1.238
2019	7.315
2020	8.974
2021	8.974
2022	8.974
2023	8.974
2024	8.974