Year	Percent change (Units)
1998	47.286
1999	26.795
2000	4.254
2001	-19.791
2002	21.916
2003	47.469
2004	8.005
2005	6.886
2006	16.551
2007	34.437
2008	20.911
2009	3.692
2010	5.924
2011	6.829
2012	0.360
2013	6.382
2014	5.739
2015	7.259
2016	9.099
2017	4.622
2018	5.944
2019	8.627
2020	5.725
2021	3.642
2022	18.385
2023	27.100
2024	15.000
2025	7.800
2026	7.800
2027	7.800
2028	7.800
2029	7.800