Year	Percent change (Units)
1993	1518.531
1994	97.505
1995	1.963
1996	3.644
1997	3.709
1998	6.709
1999	4.014
2000	4.605
2001	4.260
2002	2.534
2003	2.399
2004	2.144
2005	2.995
2006	3.288
2007	2.659
2008	5.803
2009	2.225
2010	1.083
2011	2.210
2012	3.353
2013	2.326
2014	0.220
2015	-0.256
2016	-0.630
2017	1.302
2018	1.557
2019	0.791
2020	-0.030
2021	2.724
2022	10.670
2023	8.393
2024	3.744
2025	2.229
2026	2.239
2027	2.240
2028	2.209
2029	2.229