Year	Percent change (Units)
1994	28.192
1995	20.709
1996	-3.915
1997	17.608
1998	14.729
1999	-6.635
2000	-14.381
2001	10.000
2002	8.812
2003	14.241
2004	18.280
2005	26.732
2006	14.864
2007	16.611
2008	-1.212
2009	-23.899
2010	34.853
2011	32.633
2012	2.725
2013	2.731
2014	1.942
2015	-1.413
2016	5.351
2017	3.246
2018	0.844
2019	4.633
2020	1.657
2021	12.043
2022	-0.534
2023	-12.272
2024	-6.885
2025	3.062
2026	3.700
2027	4.000
2028	3.321
2029	2.700