Year	Percent change
1991	5.629
1992	10.142
1993	9.37
1994	4.128
1995	6.544
1996	4.681
1997	4.625
1998	8.032
1999	4.074
2000	3.254
2001	4.715
2002	3.896
2003	5.152
2004	10.368
2005	12.126
2006	6.241
2007	7.254
2008	7.45
2009	2.137
2010	6.262
2011	5.686
2012	4.902
2013	4.131
2014	3.772
2015	0.486
2016	1.472
2017	2.269
2018	3.052
2019	3.9
2020	4
2021	4.1
2022	4.3
2023	4.3
2024	4.3