Year	Percent change (Units)
1995	-8.200
1996	18.552
1997	27.572
1998	1.294
1999	3.208
2000	15.631
2001	-7.291
2002	25.275
2003	20.865
2004	6.943
2005	12.272
2006	-2.506
2007	9.251
2008	-13.412
2009	0.576
2010	-0.713
2011	23.014
2012	7.844
2013	18.413
2014	-1.410
2015	-0.014
2016	7.892
2017	10.664
2018	16.513
2019	15.630
2020	-13.966
2021	11.844
2022	16.545
2023	5.536
2024	-25.000
2025	2.000
2026	4.007
2027	4.250
2028	4.557
2029	4.600