| Año | Valor |
|---|---|
| 1990-01-01 | 39999.999106 |
| 1991-01-01 | 19999.999553 |
| 1995-01-01 | 9999.999776 |
| 1997-01-01 | 9999.999776 |
| 2002-01-01 | 9999.999776 |
| 2003-01-01 | 19999.999553 |
| 2004-01-01 | 29999.999329 |
| 2008-01-01 | 349999.994040 |
| 2009-01-01 | 29999.999329 |
| 2010-01-01 | 9999.999776 |
| 2015-01-01 | 39999.999106 |
| 2016-01-01 | 39999.999106 |
| 2017-01-01 | 119999.997318 |
| 2018-01-01 | 39999.999106 |
| 2019-01-01 | 90000.003576 |
| 2020-01-01 | 59999.998659 |
| 2021-01-01 | 90000.003576 |
Fuente: World Bank