| Año | Valor |
|---|---|
| 1990-01-01 | -108615969.255814 |
| 1991-01-01 | -43923565.494956 |
| 1992-01-01 | -63149155.522145 |
| 1993-01-01 | -69458255.512836 |
| 1994-01-01 | 114397496.826730 |
| 1995-01-01 | 252039439.185249 |
| 1996-01-01 | 377785916.382999 |
| 1997-01-01 | 445625006.290969 |
| 1998-01-01 | 563012730.874894 |
| 1999-01-01 | 237835684.776467 |
| 2000-01-01 | 81794658.799783 |
| 2001-01-01 | 236159040.906329 |
| 2002-01-01 | 334168481.835004 |
| 2003-01-01 | 455367667.919276 |
| 2004-01-01 | 524089754.477741 |
| 2005-01-01 | 567307537.481600 |
| 2006-01-01 | 1196836872.768110 |
| 2007-01-01 | 1857231602.222390 |
| 2008-01-01 | 2880850489.555960 |
| 2009-01-01 | 2610817564.408940 |
Fuente: World Bank