Year	Percent change (Units)
1993	-11.400
1994	2.200
1995	-2.084
1996	2.588
1997	8.837
1998	6.336
1999	2.756
2000	5.676
2001	6.324
2002	7.088
2003	8.423
2004	8.284
2005	10.720
2006	11.972
2007	9.942
2008	-3.249
2009	-14.260
2010	-4.456
2011	2.574
2012	7.042
2013	2.008
2014	1.902
2015	3.885
2016	2.369
2017	3.312
2018	3.991
2019	0.588
2020	-3.514
2021	6.732
2022	2.955
2023	-0.306
2024	1.659
2025	2.434
2026	2.485
2027	2.488
2028	2.490
2029	2.493