Year	current US$
1997	248900000
1998	335400000
1999	224000000
2000	272146952.64
2001	283047828.21
2002	324954537.95
2003	356568239.26
2004	440114674.76
2005	588240581.6099999
2006	693196703.49
2007	874127534.19
2008	1162379296.64
2009	913444119.0699999
2010	1003365567.0400001
2011	1205642688.5
2012	1375034966.57
2013	1483127244.365
2014	1627715934.8799999
2015	1611149180.1200001
2016	1664161887.51
2017	1897817423.82
2018	2171167087.96
2019	2360252330.3
2020	1401485237.1000001
2021	1763937226.84
2022	2976630528.1
2023	3525392420.7999997