Year	Percent change (Units)
2003	-11.621
2004	34.665
2005	4.653
2006	46.298
2007	38.769
2008	8.631
2009	-31.721
2010	-4.302
2011	5.642
2012	-1.358
2013	-1.293
2014	1.425
2015	6.583
2016	12.453
2017	8.458
2018	8.216
2019	0.977
2020	-17.563
2021	7.370
2022	19.841
2023	7.564
2024	7.378
2025	4.902
2026	3.724
2027	2.881
2028	2.841
2029	2.668