Year	Percent change (Units)
1993	-23.098
1994	-19.673
1995	-13.027
1996	2.531
1997	8.884
1998	6.007
1999	11.396
2000	6.227
2001	6.486
2002	9.439
2003	10.208
2004	9.254
2005	26.400
2006	34.466
2007	25.000
2008	10.770
2009	9.260
2010	5.000
2011	0.100
2012	2.203
2013	5.843
2014	2.768
2015	1.080
2016	-3.064
2017	0.154
2018	1.470
2019	2.480
2020	-4.199
2021	5.616
2022	4.577
2023	1.100
2024	2.764
2025	2.316
2026	2.329
2027	2.350
2028	2.353
2029	2.424