Year	constant 2015 US$
1995	4668251071783.941
1996	4950740921350.975
1997	5190402031991.922
1998	5317455894910.668
1999	5472615770616.125
2000	5790919568180.146
2001	5985940740847.846
2002	6225864180342.188
2003	6502965462896.777
2004	6916669862813.621
2005	7389570395349.911
2006	7912412324791.498
2007	8580488732081.624
2008	9080471332512.252
2009	9310090165335.87
2010	10002312481351.984
2011	10827256080489.209
2012	11467975451156.23
2013	12107642031045.412
2014	12687899595613.406
2015	13182830422463.451
2016	13781535166162.656
2017	14593576789632.582
2018	15351679917575.012
2019	15994007292733.643
2020	15372810719255.355
2021	16881247218715.924
2022	17653594857629.04