Year	Percent change (Units)
1998	-96.500
1999	1812.100
2000	-0.091
2001	5.498
2002	6.074
2003	-13.811
2004	135.142
2005	-18.332
2006	40.582
2007	-6.706
2008	28.472
2009	-13.929
2010	-18.085
2011	62.574
2012	34.398
2013	-7.693
2014	69.545
2015	16.461
2016	-14.765
2017	-27.612
2018	-7.517
2019	-5.655
2020	22.428
2021	5.080
2022	-0.998
2023	37.134
2024	4.844
2025	7.428
2026	5.945
2027	4.179
2028	5.040
2029	0.422