Year	current US$
2005	5426100000
2006	5029900000
2007	4741100000
2008	7167800000
2009	8426000000
2010	9606300000
2011	10870000000
2012	13016000000
2013	17301100000
2014	18590400000
2015	17641500000
2016	14951360000
2017	16158200000
2018	17785000000
2019	22662400000
2020	13699000000
2021	15858900000
2022	22149300000