| Año | Valor |
|---|---|
| 1969-01-01 | 300000.011921 |
| 1970-01-01 | 400000.005960 |
| 1971-01-01 | 200000.002980 |
| 1976-01-01 | -300000.011921 |
| 1977-01-01 | -39999.999106 |
| 1978-01-01 | 750000.000000 |
| 1979-01-01 | 3000000.000000 |
| 1980-01-01 | 2079999.923706 |
| 1981-01-01 | 2680000.066757 |
| 1982-01-01 | 1110000.014305 |
| 1983-01-01 | 2759999.990463 |
| 1984-01-01 | 2809999.942780 |
| 1985-01-01 | 2799999.952316 |
| 1986-01-01 | 3769999.980927 |
| 1987-01-01 | 2349999.904633 |
| 1988-01-01 | 3329999.923706 |
| 1989-01-01 | 3829999.923706 |
| 1990-01-01 | 11189999.580383 |
| 1991-01-01 | 16590000.152588 |
| 1992-01-01 | 19790000.915527 |
Fuente: World Bank