Year	Percent change (Units)
2003	-16.045
2004	29.795
2005	7.267
2006	47.418
2007	34.158
2008	15.499
2009	-29.772
2010	-2.948
2011	2.992
2012	1.768
2013	-3.792
2014	1.074
2015	9.261
2016	13.018
2017	8.294
2018	9.691
2019	2.423
2020	-19.535
2021	10.579
2022	24.119
2023	5.207
2024	7.038
2025	4.645
2026	3.546
2027	2.807
2028	2.787
2029	2.650