Year	current US$
1990	91835531.5141343
1991	91335595.368789
1992	97682304.6633057
1993	98306129.4939566
1994	109401603.3395
1995	135427852.293539
1996	140767863.649671
1997	144884909.580181
1998	141773154.921154
1999	132120594.683993
2000	130473411.408259
2001	119158611.066991
2002	111607635.306392
2003	120049329.786681
2004	145530339.101494
2005	171147180.379786
2006	203434115.680271
2007	217700017.151267
2008	218882046.909026
2009	221341130.087913
2010	276516596.81013
2011	322554152.157
2012	343128780.091155
2013	360130924.040576
2014	343272653.410078
2015	321948626.494424
2016	320077337.259704
2017	346422846.772281
2018	360275809.177839
2019	347584217.709386
2020	347046938.790973
2021	405764191.259102