| Año | Valor |
|---|---|
| 2007-01-01 | 6.505570 |
| 2008-01-01 | 6.487287 |
| 2009-01-01 | 6.513410 |
| 2010-01-01 | 7.031081 |
| 2011-01-01 | 7.543051 |
| 2012-01-01 | 8.049413 |
| 2013-01-01 | 8.550258 |
| 2014-01-01 | 9.045678 |
| 2015-01-01 | 9.535758 |
| 2016-01-01 | 10.020585 |
| 2017-01-01 | 10.500243 |
| 2018-01-01 | 10.974815 |
| 2019-01-01 | 11.444380 |
| 2020-01-01 | 11.639900 |
| 2021-01-01 | 11.470313 |
Fuente: World Bank