Year	Percent change
1991	2.737
1992	1.047
1993	0.235
1994	-0.892
1995	-0.322
1996	0.067
1997	0.034
1998	0.47
1999	-0.345
2000	-1.02
2001	-4.142
2002	-0.101
2003	-0.101
2004	2.018
2005	1.879
2006	4.272
2007	8.287
2008	11.78
2009	0.923
2010	4.192
2011	3.292
2012	2.881
2013	0.304
2014	1.011
2015	0.065
2016	1.1
2017	1.6
2018	0.9
2019	1.5
2020	1.8
2021	3.8
2022	3.4
2023	2.8
2024	2.5