Year	Percent change (Units)
1996	11.746
1997	8.542
1998	3.081
1999	0.385
2000	1.665
2001	2.030
2002	-0.895
2003	-1.305
2004	2.847
2005	2.994
2006	4.553
2007	8.198
2008	8.462
2009	1.174
2010	3.624
2011	3.475
2012	2.916
2013	0.530
2014	-0.189
2015	-0.249
2016	1.960
2017	3.806
2018	1.758
2019	2.730
2020	-0.072
2021	10.702
2022	19.980
2023	0.633
2024	1.787
2025	2.190
2026	2.370
2027	2.505
2028	2.141
2029	2.344