Year	Percent change (Units)
2000	2.675
2001	-0.603
2002	-0.390
2003	1.082
2004	3.199
2005	3.908
2006	4.865
2007	3.509
2008	10.894
2009	3.854
2010	2.648
2011	7.563
2012	2.502
2013	0.962
2014	0.666
2015	-0.665
2016	-0.741
2017	0.632
2018	2.472
2019	1.332
2020	-0.305
2021	5.395
2022	6.530
2023	4.639
2024	2.987
2025	2.988
2026	2.500
2027	2.075
2028	2.038
2029	2.000