Year	current US$
1990	393520004.27246153
1991	1233449981.6894538
1992	449069997.78747606
1993	406839997.76840246
1994	728949996.948242
1995	491569995.8801275
1996	821720010.7574471
1997	885900015.8309947
1998	1513499990.4632578
1999	1953419981.0028074
2000	2095690001.4877312
2001	2202699987.4115005
2002	1408309999.4659424
2003	2304829967.4987783
2004	3331260017.395025
2005	51409999.8474121
2006	121699996.94824201
2007	100870002.746582
2008	181130004.882813
2009	129940002.441406
2010	105389999.38964799