Year	Percent change (Units)
1993	-14.200
1994	-22.900
1995	-12.200
1996	-10.000
1997	-3.000
1998	-1.900
1999	-0.200
2000	5.900
2001	8.800
2002	5.300
2003	9.500
2004	11.800
2005	3.100
2006	7.600
2007	8.200
2008	2.200
2009	-15.100
2010	4.100
2011	5.460
2012	0.224
2013	0.002
2014	-6.575
2015	-9.788
2016	2.417
2017	2.360
2018	3.488
2019	3.199
2020	-3.753
2021	3.446
2022	-29.079
2023	5.003
2024	3.202
2025	6.465
2026	4.994
2027	4.502
2028	4.300
2029	4.200