Year	Percent change (Units)
2000	88.098
2001	36.909
2002	12.028
2003	-48.174
2004	90.955
2005	0.176
2006	31.596
2007	1.261
2008	1.450
2009	-16.169
2010	-0.199
2011	0.278
2012	14.925
2013	18.060
2014	-1.568
2015	1.325
2016	-4.832
2017	-7.707
2018	31.609
2019	-7.278
2020	-13.337
2021	12.216
2022	21.784
2023	12.929
2024	4.418
2025	12.437
2026	10.026
2027	9.688
2028	6.421
2029	5.742