Year	U.S. dollars (Units)
2000	303.143
2001	305.909
2002	311.768
2003	231.891
2004	286.104
2005	293.471
2006	333.151
2007	388.154
2008	464.437
2009	470.218
2010	505.363
2011	582.614
2012	646.662
2013	716.576
2014	708.816
2015	691.369
2016	709.824
2017	706.239
2018	677.356
2019	623.887
2020	600.475
2021	677.387
2022	749.187
2023	808.229
2024	854.852
2025	890.424
2026	940.938
2027	988.700
2028	1051.415
2029	1101.728