Year	current US$
1995	5171111946.805157
1996	5898818423.045267
1997	6319027983.891383
1998	6805115159.900662
1999	6932663711.971439
2000	6209868310.6944
2001	6730386052.670433
2002	7425285723.744189
2003	11130504668.766489
2004	12957324057.267523
2005	15352938456.886042
2006	16979854978.674753
2007	19931158353.15365
2008	19952360608.82311
2009	19058228286.806293
2010	20874218444.767933
2011	22993046896.259457
2012	24947939301.43755
2013	24867187171.260033
2014	26073441801.698154
2015	23732405290.666954
2016	24284425461.4843
2017	27736344479.419884
2018	29560480313.49433
2019	28796895446.485638