| Año | Valor |
|---|---|
| 1990-01-01 | 391909648.500000 |
| 1991-01-01 | 336466925.900000 |
| 1992-01-01 | 294535505.800000 |
| 1993-01-01 | 343359743.600000 |
| 1994-01-01 | 354356329.500000 |
| 1995-01-01 | 378148778.000000 |
| 1996-01-01 | 418851090.400000 |
| 1997-01-01 | 481609414.000000 |
| 1998-01-01 | 439103453.000000 |
| 1999-01-01 | 424413707.900000 |
| 2000-01-01 | 641452247.700000 |
| 2001-01-01 | 550623651.900000 |
| 2002-01-01 | 482993543.600000 |
| 2003-01-01 | 435249407.800000 |
| 2004-01-01 | 521601537.500000 |
| 2005-01-01 | 532656988.800000 |
| 2006-01-01 | 444548915.500000 |
| 2007-01-01 | 742974995.600000 |
| 2008-01-01 | 950761592.200000 |
| 2009-01-01 | 584773573.400000 |
Fuente: World Bank