Year	Percent change (Units)
1996	4.525
1997	-0.518
1998	-0.357
1999	1.384
2000	4.001
2001	3.043
2002	1.570
2003	3.584
2004	4.814
2005	6.602
2006	6.767
2007	5.570
2008	2.686
2009	-4.657
2010	2.435
2011	1.760
2012	-0.785
2013	-0.046
2014	2.262
2015	5.388
2016	2.537
2017	5.169
2018	3.220
2019	3.030
2020	-5.503
2021	3.553
2022	2.328
2023	-0.405
2024	0.656
2025	2.014
2026	2.101
2027	2.198
2028	2.251
2029	2.303