Year	Percent change
2004	2.371
2005	6.181
2006	2.575
2007	4.327
2008	16.614
2009	-5.825
2010	5.237
2011	6.324
2012	2.906
2013	1.851
2014	1.098
2015	-2.236
2016	-1.508
2017	0.033
2018	0.757
2019	0.163
2020	2.08
2021	2.106
2022	2.113
2023	2.129
2024	2.129