Year	Percent change (Units)
1995	28.871
1996	12.939
1997	10.967
1998	5.124
1999	3.669
2000	5.036
2001	4.208
2002	2.703
2003	1.190
2004	4.799
2005	3.663
2006	5.101
2007	9.734
2008	7.536
2009	-1.873
2010	5.421
2011	4.087
2012	3.638
2013	2.049
2014	0.061
2015	-0.171
2016	2.353
2017	3.760
2018	3.319
2019	1.795
2020	-0.877
2021	12.032
2022	17.499
2023	4.262
2024	3.636
2025	2.510
2026	2.510
2027	2.510
2028	2.510
2029	2.510