Question: What year did they get 4 points with Suzuki?
SQL: SELECT AVG("Year") FROM "2-15128273-2" WHERE "Team" = 'Suzuki' AND "Points" = 4.0;

Question: What was the last year that they had less than 16 points in class 500cc?
SQL: SELECT MAX("Year") FROM "2-15128273-2" WHERE "Points" < 16.0 AND "Class" = '500cc';