Year	Percent change (Units)
1994	52.983
1995	19.948
1996	1.833
1997	15.941
1998	9.095
1999	-11.700
2000	-8.141
2001	13.632
2002	15.579
2003	17.781
2004	16.559
2005	14.773
2006	24.466
2007	13.817
2008	-7.044
2009	-32.552
2010	23.224
2011	29.139
2012	9.425
2013	-0.422
2014	2.987
2015	-2.058
2016	5.788
2017	4.997
2018	5.029
2019	2.939
2020	-1.905
2021	18.970
2022	4.913
2023	-8.131
2024	-3.854
2025	2.653
2026	3.637
2027	4.300
2028	3.743
2029	3.113