Year	Percent change (Units)
1995	57.200
1996	27.226
1997	7.050
1998	11.910
1999	10.184
2000	8.458
2001	22.350
2002	4.330
2003	13.591
2004	9.981
2005	12.478
2006	7.861
2007	11.168
2008	10.795
2009	8.833
2010	12.486
2011	23.173
2012	5.806
2013	8.140
2014	10.005
2015	34.000
2016	11.900
2017	46.700
2018	35.890
2019	1.366
2020	43.228
2021	50.398
2022	-2.680
2023	0.497
2024	20.000
2025	15.000
2026	12.500
2027	10.000
2028	10.000
2029	10.000