Year	Percent change (Units)
2001	-1.519
2002	12.869
2003	29.196
2004	9.720
2005	11.708
2006	7.347
2007	17.289
2008	4.882
2009	-5.583
2010	12.054
2011	3.569
2012	-0.073
2013	17.901
2014	4.222
2015	10.832
2016	11.317
2017	9.767
2018	7.876
2019	10.090
2020	-5.008
2021	13.881
2022	12.379
2023	8.927
2024	6.075
2025	6.738
2026	5.673
2027	5.514
2028	5.395
2029	5.570