Year	current US$
1995	496808739.6199309
1996	492291945.37864006
1997	499353423.3989708
1998	475623296.34917766
1999	446032165.39040935
2000	521243721.48369104
2001	634038388.4307462
2002	639948200.3002309
2003	833417653.9426353
2004	968611852.9184202
2005	1098937232.1330187
2006	1363196995.3695364
2007	1489302302.233415
2008	1719306170.6776073
2009	1635176655.2803922
2010	1921032107.7282703
2011	2626782046.2692757
2012	2865728152.44484
2013	3193737955.0907145
2014	3298216524.915713
2015	3554231083.6385083
2016	3495969397.406973
2017	3957953319.3328466
2018	4902991667.91126
2019	5106156381.494127