| Año | Valor |
|---|---|
| 2001-01-01 | 34674.871949 |
| 2002-01-01 | 34099.763436 |
| 2003-01-01 | 33533.317865 |
| 2004-01-01 | 32973.765377 |
| 2005-01-01 | 32422.601855 |
| 2006-01-01 | 31874.597038 |
| 2007-01-01 | 31334.013355 |
| 2008-01-01 | 30809.499030 |
| 2009-01-01 | 30300.685634 |
| 2010-01-01 | 29806.493494 |
| 2011-01-01 | 29326.706174 |
| 2012-01-01 | 28861.313259 |
| 2013-01-01 | 28410.665261 |
| 2014-01-01 | 27975.217368 |
| 2015-01-01 | 27554.074303 |
| 2016-01-01 | 27146.641956 |
| 2017-01-01 | 26752.846975 |
| 2018-01-01 | 26372.114621 |
| 2019-01-01 | 26003.766819 |
| 2020-01-01 | 25684.861224 |
Fuente: World Bank