Year	current US$
2006	44609999.99567863
2007	43550000.20377338
2008	47619999.995455146
2009	37840000.27924776
2010	49060000.01542272
2011	33119999.887421727
2012	32989999.89591539
2013	43789999.855682254
2014	41269999.831914894
2015	32738413.741812106
2016	34768725.018482655
2017	38058757.796417914
2018	46366677.773185074
2019	39691644.54005659
2020	42861590.60476348
2021	43921019.380912185
2022	47827418.17459464