Year	Percent change (Units)
2000	2.515
2001	34.253
2002	-4.464
2003	3.579
2004	20.808
2005	10.037
2006	15.088
2007	30.748
2008	11.890
2009	-14.220
2010	32.340
2011	27.232
2012	24.828
2013	16.305
2014	-6.930
2015	0.686
2016	-8.246
2017	12.553
2018	6.392
2019	-20.401
2020	-17.492
2021	13.693
2022	21.315
2023	12.674
2024	-1.073
2025	5.327
2026	6.851
2027	6.933
2028	10.675
2029	9.284