| Año | Valor |
|---|---|
| 1990-01-01 | 3958628620.300000 |
| 1991-01-01 | 3769113833.900000 |
| 1992-01-01 | 3907338817.300000 |
| 1993-01-01 | 3972647141.900000 |
| 1994-01-01 | 4401531072.500000 |
| 1995-01-01 | 4784848451.600000 |
| 1996-01-01 | 4625220518.200000 |
| 1997-01-01 | 4635465571.800000 |
| 1998-01-01 | 5010989526.100000 |
| 1999-01-01 | 4958912864.800000 |
| 2000-01-01 | 5235655524.700000 |
| 2001-01-01 | 4173328307.700000 |
| 2002-01-01 | 4505385732.600000 |
| 2003-01-01 | 5213784936.600000 |
| 2004-01-01 | 5663608066.800000 |
| 2005-01-01 | 6503900582.900000 |
| 2006-01-01 | 5586263466.300000 |
| 2007-01-01 | 4799584345.900000 |
| 2008-01-01 | 5389880357.700000 |
| 2009-01-01 | 5218619064.400000 |
Fuente: World Bank