Year	Percent change (Units)
1998	0.925
1999	-1.167
2000	-0.939
2001	-1.065
2002	25.869
2003	13.443
2004	4.416
2005	9.642
2006	10.898
2007	8.830
2008	8.585
2009	6.270
2010	10.461
2011	9.775
2012	10.043
2013	10.619
2017	25.675
2018	34.277
2019	53.548
2020	42.015
2021	48.409
2022	72.431
2023	133.489
2024	249.793
2025	59.597
2026	31.818
2027	17.459
2028	10.388
2029	8.898