| Año | Valor |
|---|---|
| 1996-01-01 | 1131990000.000000 |
| 1997-01-01 | 1090000000.000000 |
| 1998-01-01 | 1032000000.000000 |
| 1999-01-01 | 1005500000.000000 |
| 2000-01-01 | 1139092096.030000 |
| 2001-01-01 | 1188657425.889720 |
| 2002-01-01 | 1184341415.905520 |
| 2003-01-01 | 1492659721.646430 |
| 2004-01-01 | 2044256550.866250 |
| 2005-01-01 | 2622226566.012050 |
| 2006-01-01 | 3661955400.563700 |
| 2007-01-01 | 4262826733.644910 |
| 2008-01-01 | 6271446254.134590 |
| 2009-01-01 | 4709830000.000000 |
| 2010-01-01 | 6129300487.304600 |
| 2011-01-01 | 8174835184.804500 |
| 2012-01-01 | 11132827855.415800 |
| 2013-01-01 | 11538700931.334200 |
| 2014-01-01 | 12809705325.341700 |
| 2015-01-01 | 8684018275.651340 |
Fuente: World Bank