| Año | Valor |
|---|---|
| 1996-01-01 | -5.133062 |
| 1997-01-01 | -6.983578 |
| 1998-01-01 | -7.838781 |
| 1999-01-01 | -5.890117 |
| 2000-01-01 | -5.315046 |
| 2001-01-01 | -3.365608 |
| 2002-01-01 | -4.451756 |
| 2003-01-01 | 0.935303 |
| 2004-01-01 | 3.846826 |
| 2005-01-01 | 6.518286 |
| 2006-01-01 | 11.504455 |
| 2007-01-01 | 12.128301 |
| 2008-01-01 | 11.950738 |
| 2009-01-01 | 4.691698 |
| 2010-01-01 | 4.446605 |
| 2011-01-01 | 2.241795 |
| 2012-01-01 | 7.273678 |
| 2013-01-01 | 3.437721 |
| 2014-01-01 | 1.716049 |
| 2015-01-01 | -5.867266 |
Fuente: World Bank