user: Question: What is the average point total for arrows racing team before 1983?
Columns: ['Year', 'Team', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1983.0, 'Arrows Racing Team', 'Arrows A6', 'Cosworth V8', 0.0]
SQL:

assistant: SELECT AVG("Points") FROM "Table" WHERE "Team" = 'arrows racing team' AND "Year" < 1983.0;