| Año | Valor |
|---|---|
| 1977-01-01 | 19999.999553 |
| 1981-01-01 | 9999.999776 |
| 1984-01-01 | 9999.999776 |
| 1988-01-01 | 9999.999776 |
| 1998-01-01 | 50000.000745 |
| 2001-01-01 | 29999.999329 |
| 2003-01-01 | 29999.999329 |
| 2010-01-01 | 29999.999329 |
| 2011-01-01 | 9999.999776 |
| 2012-01-01 | 550000.011921 |
| 2013-01-01 | 209999.993443 |
| 2014-01-01 | 150000.005960 |
| 2015-01-01 | 200000.002980 |
| 2016-01-01 | 79999.998212 |
| 2017-01-01 | 59999.998659 |
| 2018-01-01 | 29999.999329 |
| 2019-01-01 | 9999.999776 |
| 2020-01-01 | 9999.999776 |
| 2021-01-01 | 39999.999106 |
| 2022-01-01 | 39999.999106 |
Fuente: World Bank