Year	Percent change (Units)
1999	24.752
2000	-4.341
2001	-6.569
2002	-7.797
2003	81.787
2004	53.386
2005	1.675
2006	5.638
2007	1.889
2008	8.228
2009	3.379
2010	6.403
2011	7.546
2012	13.936
2013	7.628
2014	0.738
2015	2.537
2016	15.199
2017	-3.399
2018	4.703
2019	5.368
2020	-12.055
2021	1.580
2022	6.983
2023	-2.176
2024	1.377
2025	5.312
2026	3.766
2027	3.551
2028	3.556
2029	3.557