Year	Percent change (Units)
2001	-17.701
2002	-4.900
2003	13.839
2004	23.504
2005	4.302
2006	6.391
2007	8.007
2008	10.206
2009	2.578
2010	11.602
2011	15.359
2012	-1.948
2013	-2.032
2014	4.858
2015	-2.940
2016	7.591
2017	5.458
2018	10.897
2019	4.502
2020	-5.991
2021	31.427
2022	5.658
2023	6.921
2024	4.644
2025	4.654
2026	5.157
2027	4.493
2028	4.488
2029	4.046