Conversation so far:
How did Zico's international career start?
Zico made his international debut in the South American Qualifier to the 1972 Summer Olympics playing 5 matches and scoring the qualifying goal against Argentina.
Who did Zico play for in his international career?
With 48 goals in 71 official appearances for Brazil, Zico is fifth highest goalscorer for his national team. He represented them in the 1978, 1982 and 1986 World Cups.

Question: How long did he play for Brazil?
Self-contained rewrite: How long did Zico play for Brazil?