Year	constant 2010 US$
1990	12390574615.024
1991	10861162601.8771
1992	9457843031.66485
1993	10748103910.8509
1994	11060032149.1774
1995	11607446894.3441
1996	11264029767.0962
1997	11253888473.8383
1998	9963690609.35476
1999	10176397734.6112
2000	8431835261.08353
2001	10807628231.6285
2002	10188402598.8525
2003	10730008333.2311
2004	12732567040.7954
2005	10550152063.9127
2006	10904577261.62
2007	8009671425.07634
2008	9892701556.54912
2009	9681467952.53526
2010	8304288995.87778
2011	10326783579.0774
2012	7668247885.39205
2013	10207731730.4467
2014	10718220163.2902
2015	9527875032.42341
2016	9927979388.65156
2017	11373677083.0903
2018	12505558091.7136