Year	current US$
1996	14678982.042
1997	37422012.699
1998	35479433.537
1999	43294100.489
2000	64996306.2062405
2001	70878588.59392
2002	87132886.6515178
2003	109470730.836544
2004	116977780.963214
2005	197045573.163937
2006	262222956.973907
2007	345284588.723415
2008	392883995.384244
2009	350236765.729527
2010	332843888.295726
2011	363441737.247267
2012	247440156.426885
2013	389949267.085166
2014	444510915.759118
2015	412761799.248497
2016	423743131.258128
2017	519662539.939735
2018	634927181.959706
2019	744357216.72077
2020	828601190.418293
2021	986395243.722943
2022	1130885264.15044