Year	constant 2015 US$
1996	10958969740.480345
1997	11900183634.390814
1998	12293927024.59687
1999	13132757604.028336
2000	12213417398.246412
2001	11440383725.458698
2002	11845718097.749823
2003	10298990918.985508
2004	11571025512.421444
2005	12221502685.320684
2006	12920844636.940865
2007	11832463758.184977
2008	11166793772.74433
2009	13268861179.739378
2010	12067428461.809631
2011	12106780336.575817
2012	13373749392.895134
2013	11656834879.474934
2014	12326913206.308039
2015	12531890057.425758
2016	12427020684.56027
2017	14606742691.346409
2018	14063721297.848877
2019	15436757537.22992
2020	14174271409.291363
2021	16630808953.47913
2022	24842379725.882893
2023	25260242130.22253