Year	Percent change (Units)
1993	-62.400
1994	-8.000
1995	-4.142
1996	-5.594
1997	29.805
1998	22.139
1999	-4.524
2000	5.904
2001	32.444
2002	10.402
2003	-0.717
2004	7.764
2005	42.400
2006	40.425
2007	45.772
2008	6.798
2009	8.522
2010	-2.452
2011	0.269
2012	-0.996
2013	-1.683
2014	-2.239
2015	9.275
2016	1.894
2017	-6.614
2018	1.317
2019	2.551
2020	-9.563
2021	3.606
2022	35.867
2023	-29.384
2024	-0.302
2025	5.004
2026	-1.784
2027	0.738
2028	-1.162
2029	-1.615