Year	constant 2021 US$
1990	2579859944.3435674
1991	6608700047.016145
1992	3529889976.5014668
1993	2595770023.34595
1994	3955370075.225829
1995	5261920211.791992
1996	2839319984.436039
1997	2755560005.1879864
1998	3817499996.185306
1999	4572740013.122563
2000	5349309944.152838
2001	5339810043.334967
2002	3703639930.7250977
2003	4530229990.005497
2004	5223570097.446447
2011	250000