Year	Percent change
1980	14.088
1981	22.235
1982	20.607
1983	15.288
1984	25.139
1985	15.031
1986	7.9
1987	28.7
1988	39.9
1989	89.5
1990	64.3
1991	103.1
1992	26.7
1993	8.4
1994	12.4
1995	12.222
1996	7.092
1997	3.556
1998	4.568
1999	7.533
2000	6.112
2001	2.648
2002	5.36
2003	5.979
2004	4.67
2005	6.925
2006	6.677
2007	12.2
2008	8.102
2009	2.952
2010	4.302
2011	4.408
2012	2.391
2013	1.909
2014	0.684
2015	-0.865
2016	0.827
2017	1.954
2018	1.296
2019	2.924
2020	3.109
2021	3.367
2022	3.536
2023	3.3
2024	2.802