| Año | Valor |
|---|---|
| 1960-01-01 | 1276.965772 |
| 1961-01-01 | 1277.284946 |
| 1962-01-01 | 1321.009162 |
| 1963-01-01 | 1381.644097 |
| 1964-01-01 | 1406.290446 |
| 1965-01-01 | 1444.227124 |
| 1966-01-01 | 1514.706978 |
| 1967-01-01 | 1575.496361 |
| 1968-01-01 | 1672.332106 |
| 1969-01-01 | 1708.503594 |
| 1970-01-01 | 1758.010163 |
| 1971-01-01 | 1805.973923 |
| 1972-01-01 | 1906.555585 |
| 1973-01-01 | 1971.132722 |
| 1974-01-01 | 1983.716503 |
| 1975-01-01 | 2081.069442 |
| 1976-01-01 | 2127.832948 |
| 1977-01-01 | 2182.675370 |
| 1978-01-01 | 2176.909828 |
| 1979-01-01 | 2130.754476 |
Fuente: World Bank