Year	current US$
2005	4960768561.934758
2006	6491224328.492942
2007	8888960819.413677
2008	14348694737.660706
2009	12068258655.820559
2010	15785267955.523241
2011	20253677593.672592
2012	22065478356.537045
2013	21581545559.137783
2014	24497909574.17514
2015	22233192370.86756
2016	20999620510.13395
2017	19962105194.906
2018	18741053383.382126
2019	20843413160.066822
2020	20108689693.677017
2021	23039556892.218914
2022	31244546082.91333
2023	31690927313.044704