Year	Percent change (Units)
2001	6.502
2002	5.056
2003	-3.380
2004	4.077
2005	3.664
2006	0.031
2007	0.947
2008	-5.255
2009	-6.839
2010	-1.141
2011	4.124
2012	1.868
2013	-1.612
2014	4.435
2015	9.549
2016	1.507
2017	-3.514
2018	1.261
2019	1.357
2020	-7.040
2021	-13.362
2022	-1.964
2023	0.800
2024	12.400
2025	11.900
2026	3.500
2027	2.000
2028	1.500
2029	1.500