Year	current US$
1995	13151000000
1996	13709000000
1997	12555000000
1998	13474000000
1999	13468000000
2000	13649000000
2001	13061000000
2002	14201000000
2003	15887000000
2004	16937000000
2012	20094000000
2013	21009000000
2014	23655000000
2015	20234000000
2016	20188800781.25
2017	22301099609.375
2018	23359300781.25
2019	22547400390.625
2020	7435700195.3125