Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| # | Date | Venue | Opponent | Score | Result | Competition |
| --- | --- | --- | --- | --- | --- | --- |
| 1. | 27 March 1977 | Rico Pérez, Alicante, Spain | Hungary | 1–1 | 1–1 | Friendly |
| 2. | 4 October 1978 | Maksimir, Zagreb, Yugoslavia | Yugoslavia | 0–1 | 1–2 | Euro 1980 qualifying |
| 3. | 24 September 1980 | Nepstadion, Budapest, Hungary | Hungary | 0–1 | 2–2 | Friendly |
| 4. | 18 February 1981 | Vicente Calderón, Madrid, Spain | France | 1–0 | 1–0 | Friendly |
| 5. | 23 June 1981 | Azteca, Mexico City, Mexico | Mexico | 0–1 | 1–3 | Friendly |
| 6. | 23 June 1981 | Azteca, Mexico City, Mexico | Mexico | 0–2 | 1–3 | Friendly |
| 7. | 28 June 1981 | Olímpico, Caracas, Venezuela | Venezuela | 0–1 | 0–2 | Friendly |
| 8. | 20 June 1982 | Luis Casanova, Valencia, Spain | Yugoslavia | 1–1 | 2–1 | 1982 FIFA World Cup |
Question:
how many opponents are listed?
Answer:
8