| Año | Valor |
|---|---|
| 1990-01-01 | 113651495.565237 |
| 1991-01-01 | 116254033.940980 |
| 1992-01-01 | 116893900.663023 |
| 1993-01-01 | 110345273.601865 |
| 1994-01-01 | 105940798.307482 |
| 1995-01-01 | 109925035.674530 |
| 1996-01-01 | 111515278.560536 |
| 1997-01-01 | 108974719.321741 |
| 1998-01-01 | 104694634.765480 |
| 1999-01-01 | 96937485.296735 |
| 2000-01-01 | 92909324.169398 |
| 2001-01-01 | 85429549.706287 |
| 2002-01-01 | 77484569.620060 |
| 2003-01-01 | 74385334.725313 |
| 2004-01-01 | 74528769.167446 |
| 2005-01-01 | 74362957.146245 |
| 2006-01-01 | 79981316.716072 |
| 2007-01-01 | 85235263.638823 |
| 2008-01-01 | 98786866.626942 |
| 2009-01-01 | 96427127.396946 |
Fuente: World Bank