Year	Percent change
1996	11.952
1997	12.246
1998	14.432
1999	-2.515
2000	23.21
2001	3.118
2002	4.824
2003	14.1
2004	4.893
2005	9.866
2006	15.562
2007	10.04
2008	7.061
2009	-5.947
2010	13.07
2011	7.862
2012	4.584
2013	6.082
2014	6.675
2015	7.694
2016	8.849
2017	9.451
2018	6.22
2019	5.164
2020	5.095
2021	5.145
2022	4.9
2023	4.45
2024	4.45