Year current US$ 1990 7919820775.746767 1991 7189409870.401885 1992 5752387500 1993 6384242747.187685 1994 6993989734.697207 1995 6972124016.367642 1996 5909899124.229646 1997 5410792676.836022 1998 4664941642.12367 1999 4139526391.71869 2000 5962638478.915385 2001 6992477870.353834 2002 8670168274.319832 2003 9435464451.430374 2004 11853230265.619213 2005 13999479954.554686 2006 20733509403.572655 2007 31075319332.93016 2008 46744739379.83448 2009 39216822211.48462 2010 37096352880.06155 2011 44069781683.63364 2012 39112129330.94486 2013 46182838178.44403 2014 49353946710.87118 2015 43961284235.191765 2016 41014433144.83401 2017 43753813376.4679 2018 45587365597.57906 2019 48750208294.297035 2020 49284196848.51399 2021 54534110177.061356 2022 53464146479.42995 2023 65560449012.788994