Year	Percent change
1998	30
1999	41.1
2000	70
2001	80.744
2002	8.868
2003	2.901
2004	10.602
2005	16.253
2006	10.732
2007	6.002
2008	12.411
2009	8.117
2010	6.143
2011	11.137
2012	7.33
2013	7.694
2014	2.082
2015	1.392
2016	1.122
2017	3.131
2018	1.96
2019	2.006
2020	2.5
2021	2.959
2022	3
2023	3
2024	3