Year	current US$
2006	378090589.214854
2007	197619642.519248
2008	302736955.637002
2009	271966420.038547
2010	363312712.642227
2011	534166720.461378
2012	700791148.737262
2013	292418651.782175
2014	423074781.824048
2015	303656212.827449
2016	486172931.543985
2017	538391089.459552
2018	433009068.407267
2019	543244405.911496
2020	398279365.263675
2021	318267841.567752