Year	constant 2015 US$
2008	6432820037.713494
2009	6587294629.736407
2010	6896316963.275013
2011	7365918505.195659
2012	7365919763.795935
2013	7616824841.885757
2014	7885188209.62017
2015	8129050833.4664755
2016	8581674475.861843
2017	8774401470.546986
2018	9238831872.69601
2019	9626140522.502262
2020	9634349302.519459
2021	10431078645.466743
2022	10579591485.925232
2023	10991347344.427486