| Año | Valor |
|---|---|
| 1960-01-01 | -400000.005960 |
| 1961-01-01 | 70000.000298 |
| 1962-01-01 | 2400000.095367 |
| 1963-01-01 | 2279999.971390 |
| 1964-01-01 | 2890000.104904 |
| 1965-01-01 | 709999.978542 |
| 1966-01-01 | 1080000.042915 |
| 1967-01-01 | 1080000.042915 |
| 1968-01-01 | 2859999.895096 |
| 1969-01-01 | 2250000.000000 |
| 1970-01-01 | 3160000.085831 |
| 1971-01-01 | 2170000.076294 |
| 1972-01-01 | 2619999.885559 |
| 1973-01-01 | 3279999.971390 |
| 1974-01-01 | 7570000.171661 |
| 1975-01-01 | 12760000.228882 |
| 1976-01-01 | 19989999.771118 |
| 1977-01-01 | 12060000.419617 |
| 1978-01-01 | 12479999.542236 |
| 1979-01-01 | 19280000.686646 |
Fuente: World Bank