Year	Percent change (Units)
1996	-3.339
1997	-6.211
1998	2.837
1999	1.129
2000	4.625
2001	1.820
2002	0.443
2003	1.763
2004	-3.190
2005	2.314
2006	-0.199
2007	-1.724
2008	-2.583
2009	1.098
2010	2.066
2011	3.784
2012	-1.694
2013	-3.676
2014	-2.586
2015	4.434
2016	0.943
2017	2.255
2018	0.064
2019	3.820
2020	-1.870
2021	3.013
2022	-0.864
2023	0.766
2024	1.052
2025	1.725
2026	1.116
2027	0.809
2028	0.734
2029	0.700