| Año | Valor |
|---|---|
| 1988-12-31 | 4485800631.000000 |
| 1989-12-31 | 4655817666.000000 |
| 1990-12-31 | 4871651735.000000 |
| 1991-12-31 | 5128218927.000000 |
| 1992-12-31 | 5212654574.000000 |
| 1993-12-31 | 5435198423.000000 |
| 1994-12-31 | 5688872871.000000 |
| 1995-12-31 | 5955014826.000000 |
| 1996-12-31 | 6214733754.000000 |
| 1997-12-31 | 6522623659.000000 |
| 1998-12-31 | 6850669716.000000 |
| 1999-12-31 | 6879914196.000000 |
| 2000-12-31 | 7052449842.000000 |
| 2001-12-31 | 7171198738.000000 |
| 2002-12-31 | 7349443533.000000 |
| 2003-12-31 | 7548712303.000000 |
| 2004-12-31 | 7863742271.000000 |
| 2005-12-31 | 8211432177.000000 |
| 2006-12-31 | 8605335331.000000 |
| 2007-12-31 | 8998115773.000000 |
Fuente: World Bank