Year	current US$
2002	1355564424.4926288
2003	844580138.0770774
2004	3104342456.0837007
2005	9043664059.933035
2006	16924606577.597134
2007	18112408545.94918
2008	20882153288.78941
2009	-3467229994.107894
2010	15890556104.669003
2011	23875370935.676094
2012	25713235399.249935
2013	19430344045.673637
2014	13674366440.101192
2015	-3058163807.2870207
2016	1518908204.3283198
2017	4238202146.5044494
2018	12151638218.349546
2019	16839664248.360376
2020	5183387334.122288
2021	13983404119.792484
2022	19940548616.91061
2023	11192917102.206715