Year	Percent change (Units)
2001	-10.218
2002	-4.566
2003	-18.113
2004	-2.917
2005	-2.967
2006	-9.232
2007	-16.388
2008	5.940
2009	-3.834
2010	-21.109
2011	-30.351
2012	36.612
2013	9.227
2014	8.170
2015	2.389
2016	-27.022
2017	-51.324
2018	-12.615
2019	93.025
2020	-27.066
2021	36.643
2022	16.819
2023	1.155
2024	5.823
2025	6.200
2026	4.500
2027	4.500
2028	4.500
2029	4.500