Year	current US$
1991	19999.9995529652
1992	50000.0007450581
1993	19999.9995529652
1994	39999.9991059303
1996	9999.99977648258
1998	29999.999329447703
1999	29999.999329447703
2000	39999.9991059303
2001	39999.9991059303