Year	Percent change
1991	3.606
1992	17.562
1993	1.493
1994	2.699
1995	9.001
1996	4.479
1997	5.533
1998	8.25
1999	1.927
2000	5.578
2001	1.732
2002	8.402
2003	2.398
2004	16.144
2005	5.805
2006	8.887
2007	7.41
2008	3.906
2009	4.915
2010	6.143
2011	5.472
2012	3.405
2013	4.486
2014	5.001
2015	-2.83
2016	2.77
2017	1.236
2018	3.154
2019	4
2020	4.1
2021	4.3
2022	4.3
2023	4.3
2024	4.3