Year	Percent change (Units)
1993	-3.000
1994	8.600
1995	3.000
1996	2.762
1997	14.594
1998	10.764
1999	3.901
2000	14.141
2001	7.214
2002	8.560
2003	4.129
2004	13.920
2005	12.073
2006	15.697
2007	13.955
2008	1.876
2009	-17.040
2010	11.994
2011	7.994
2012	0.363
2013	3.329
2014	6.264
2015	5.321
2016	5.716
2017	11.033
2018	5.748
2019	4.458
2020	-5.530
2021	13.378
2022	2.911
2023	-2.544
2024	3.054
2025	4.271
2026	4.270
2027	4.519
2028	4.448
2029	4.484