Year	Percent change (Units)
2001	-1.175
2002	2.565
2003	4.074
2004	0.140
2005	3.384
2006	2.510
2007	4.775
2008	3.826
2009	-1.134
2010	5.544
2011	0.467
2012	4.118
2013	5.473
2014	7.634
2015	9.608
2016	3.381
2017	10.869
2018	7.416
2019	7.124
2020	-8.157
2021	12.514
2022	8.076
2023	5.614
2024	5.041
2025	4.005
2026	3.604
2027	3.500
2028	3.534
2029	3.511