Year current US$ 1990 2603571428.571429 1991 2550943396.226415 1992 1908554572.2713864 1993 1646995808.1043315 1994 1309651898.734177 1995 1183038675.9827793 1996 967357360.4060915 1997 897921871.915751 1998 1287131369.7086754 1999 1057094245.2366796 2000 824412233.5942204 2001 1030086266.2044219 2002 1179977808.5931466 2003 1485016464.866839 2004 2018638461.8388503 2005 2660524577.2030573 2006 3460593443.867466 2007 4729663327.313454 2008 6649276639.777307 2009 5953362631.399558 2010 6969749692.10775 2011 8316624763.051705 2012 9744488621.924358 2013 11112718542.523005 2014 11296415927.115522 2015 9797996695.503265 2016 8081792570.518813 2017 8637196303.701328 2018 8990673043.814827 2019 9631287021.790451 2020 9498106073.450132 2021 10758910057.167618 2022 14210918854.236782 2023 15143750556.156216