| Año | Valor |
|---|---|
| 1983-01-01 | 180000.007153 |
| 1984-01-01 | 119999.997318 |
| 1985-01-01 | 79999.998212 |
| 1986-01-01 | 79999.998212 |
| 1987-01-01 | 140000.000596 |
| 1988-01-01 | 159999.996424 |
| 1989-01-01 | 129999.995232 |
| 1990-01-01 | 129999.995232 |
| 1991-01-01 | 850000.023842 |
| 1992-01-01 | 2029999.971390 |
| 1993-01-01 | 2160000.085831 |
| 1994-01-01 | 2450000.047684 |
| 1995-01-01 | 3049999.952316 |
| 1996-01-01 | 4050000.190735 |
| 1997-01-01 | 2980000.019073 |
| 1998-01-01 | 2539999.961853 |
| 1999-01-01 | 3289999.961853 |
| 2000-01-01 | 2980000.019073 |
| 2001-01-01 | 63240001.678467 |
| 2002-01-01 | 289999.991655 |
Fuente: World Bank