Year	U.S. dollars (Units)
2010	49030.229
2011	51957.313
2012	45713.970
2013	45630.195
2014	46299.282
2015	38877.485
2016	39595.317
2017	40017.741
2018	42229.903
2019	40688.491
2020	36973.845
2021	41806.876
2022	41378.881
2023	43784.571
2024	44899.596
2025	45570.140
2026	46093.258
2027	46597.511
2028	47098.423
2029	47563.642