Year	Percent change
1999	8.123
2000	3.204
2001	19.313
2002	11.095
2003	5.037
2004	7.524
2005	7
2006	11.911
2007	11.659
2008	9.388
2009	9.708
2010	6.618
2011	11.449
2012	7.709
2013	8.494
2014	7.661
2015	8.039
2016	12.518
2017	13.894
2018	27.206
2019	21.802
2020	19
2021	16
2022	33
2023	15
2024	12