Year	constant 2015 US$
1997	69521594.52564588
1998	58611694.79723683
1999	61165075.65008532
2000	56514440.66545807
2001	70871404.36092983
2002	67933855.82871974
2003	108926062.80414355
2004	98364351.387811
2005	115040249.09735756
2006	127136127.59618787
2007	141642099.11151108
2008	229157997.09508175
2009	147583140.53528652
2010	215351274.2508238
2011	211990613.86939576
2012	294269898.0602641
2013	234835988.69122496
2014	231058535.5166342
2015	199192399.0417515
2016	210480120.67246592
2017	278167418.9061512
2018	308765974.05174595
2019	307280748.0184673
2020	261495916.49414894
2021	270370134.8022118
2022	285921067.92241895
2023	308349974.59589195