Year	Percent change (Units)
2005	36.959
2006	53.231
2007	30.835
2008	2.668
2009	-2.801
2010	2.430
2011	5.604
2012	6.089
2013	1.879
2014	2.236
2015	1.393
2016	0.458
2017	0.200
2018	0.351
2019	-0.199
2020	0.574
2021	6.042
2022	4.987
2023	4.416
2024	4.000
2025	4.000
2026	3.800
2027	3.800
2028	3.700
2029	3.600