Year	Percent change (Units)
1993	41.185
1994	-30.209
1995	24.822
1996	10.526
1997	15.527
1998	6.818
1999	-8.292
2000	57.497
2001	2.109
2002	9.178
2003	12.852
2004	32.807
2005	27.255
2006	10.069
2007	15.289
2008	7.077
2009	2.507
2010	0.905
2011	13.640
2012	2.448
2013	3.257
2014	-11.240
2015	-3.002
2016	2.606
2017	11.367
2018	2.514
2019	6.401
2020	-9.624
2021	-3.765
2022	1.878
2023	15.542
2024	4.915
2025	12.739
2026	2.539
2027	5.091
2028	1.817
2029	2.971