Year	Percent change (Units)
1994	11.409
1995	2.361
1996	8.333
1997	17.876
1998	24.772
1999	0.183
2000	9.999
2001	-2.241
2002	3.701
2003	-19.218
2004	-8.008
2005	15.238
2006	15.648
2007	7.885
2008	4.729
2009	-10.867
2010	34.691
2011	-0.676
2012	2.001
2013	-4.510
2014	5.425
2015	19.452
2016	8.749
2017	-3.816
2018	4.255
2019	4.100
2020	-9.347
2021	17.635
2022	14.876
2023	-4.262
2024	3.624
2025	2.913
2026	2.609
2027	2.966
2028	3.909
2029	4.708