Year	Percent change (Units)
2001	2.758
2002	4.431
2003	-28.974
2004	3.971
2005	5.856
2006	8.480
2007	13.103
2008	6.105
2009	5.192
2010	6.351
2011	7.700
2012	8.420
2013	8.836
2014	0.695
2015	0.007
2016	-1.630
2017	2.469
2018	1.242
2019	-2.516
2020	-2.967
2021	5.011
2022	4.811
2023	4.583
2024	5.277
2025	6.248
2026	6.234
2027	6.278
2028	7.133
2029	6.151