Year	Percent change (Units)
1993	1.000
1994	12.800
1995	0.900
1996	2.972
1997	11.634
1998	7.821
1999	2.005
2000	12.593
2001	7.181
2002	7.784
2003	3.160
2004	13.041
2005	11.366
2006	14.122
2007	13.858
2008	4.183
2009	-16.560
2010	10.161
2011	6.868
2012	0.496
2013	3.061
2014	6.011
2015	4.741
2016	6.163
2017	11.071
2018	6.155
2019	4.482
2020	-8.529
2021	14.474
2022	7.163
2023	-1.967
2024	2.872
2025	4.271
2026	4.270
2027	4.519
2028	4.385
2029	4.399