Year	Percent change (Units)
1993	0.000
1996	0.000
1998	20.067
1999	24.230
2000	26.251
2001	25.176
2002	-12.978
2003	30.805
2004	10.573
2005	-11.276
2006	-22.891
2007	36.756
2008	36.157
2009	64.716
2010	-10.542
2011	32.648
2012	21.440
2013	17.231
2014	3.906
2015	-12.985
2016	-1.091
2017	-22.745
2018	-48.789
2019	9.016
2020	4.947
2021	-1.034
2022	4.464
2023	10.408
2024	2.273
2025	4.362
2026	7.046
2027	7.902
2028	7.749
2029	9.607