| Año | Valor |
|---|---|
| 1993-01-01 | 13319999.694824 |
| 1994-01-01 | 14420000.076294 |
| 1995-01-01 | 29389999.389648 |
| 1996-01-01 | 44630001.068115 |
| 1997-01-01 | 13939999.580383 |
| 1998-01-01 | 12170000.076294 |
| 1999-01-01 | 13819999.694824 |
| 2000-01-01 | 8279999.732971 |
| 2001-01-01 | 8439999.580383 |
| 2002-01-01 | 33919998.168945 |
| 2003-01-01 | 11600000.381470 |
| 2004-01-01 | 17799999.237061 |
| 2005-01-01 | 16420000.076294 |
| 2006-01-01 | 39779998.779297 |
| 2007-01-01 | 7230000.019073 |
| 2008-01-01 | 13939999.580383 |
| 2009-01-01 | 10010000.228882 |
| 2010-01-01 | 12239999.771118 |
| 2011-01-01 | 10130000.114441 |
| 2012-01-01 | 8180000.305176 |
Fuente: World Bank