Year	Percent change (Units)
1994	6.206
1995	7.872
1996	6.941
1997	4.445
1998	4.076
1999	-0.106
2000	1.167
2001	3.254
2002	4.510
2003	5.499
2004	5.279
2005	6.624
2006	8.493
2007	10.832
2008	5.574
2009	-5.455
2010	6.717
2011	2.671
2012	1.319
2013	0.633
2014	2.697
2015	5.167
2016	1.944
2017	2.938
2018	4.030
2019	2.511
2020	-3.335
2021	4.789
2022	1.750
2023	1.150
2024	2.077
2025	2.600
2026	2.800
2027	2.700
2028	2.700
2029	2.700