Year	current US$
1998	153640902.048545
1999	130454560.120602
2000	135538206.510579
2001	152845007.823522
2002	120529560.770874
2003	119691117.92926
2004	239856567.542055
2005	296761189.341991
2006	294033632.386512
2007	316866690.062737
2008	355347245.020959
2009	347792446.946271
2010	339569368.877098
2011	351638509.254505
2012	366815267.282392
2013	360237541.426858
2014	372449060.135887
2015	386750552.610119
2016	399492889.185887
2017	436898438.64628
2018	424573814.619567
2019	451246722.143142
2020	426572579.596946
2021	453090876.703472
2022	418510210.064583
2023	407880828.857422