Year	Percent change
1991	-34.589
1992	-25.617
1993	-15.786
1994	-31.661
1995	11.452
1996	32.6
1997	12.7
1998	-18.2
1999	-43
2000	26.1
2001	15
2002	16
2003	27
2004	14
2005	21
2006	8
2007	25
2008	14
2009	-25
2010	14
2011	22
2012	1
2013	6
2014	1
2015	-5
2016	7.6
2017	12.442
2018	9.786
2019	8.977
2020	5.61
2021	4.415
2022	3.962
2023	3.316
2024	3.439