Year	Percent change (Units)
2001	-18.102
2002	-1.912
2003	-13.508
2004	9.228
2005	-7.798
2006	2.092
2007	-5.567
2008	-3.237
2009	-12.106
2010	0.136
2011	7.235
2012	9.076
2013	2.488
2014	10.987
2015	2.498
2016	6.112
2017	0.663
2018	-7.109
2019	0.662
2020	-0.353
2021	-19.525
2022	9.314
2023	1.190
2024	13.062
2025	8.091
2026	2.855
2027	1.760
2028	1.290
2029	1.163