user: Question: Which Year has an Average A's per learner larger than 3.37, and a % 'A' or 'B' Aggregates of 73%?
Columns: ['Year', 'Pass Rate', "% 'A' Aggregates", "% 'B' Aggregates", "% 'A' or 'B' Aggregates", "Average A's per learner"]
Types: ['real', 'text', 'text', 'text', 'text', 'real']
Sample row: [2007.0, '100%', '56%', '28%', '84%', 3.28]
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Average A's per learner" > 3.37 AND "% 'A' or 'B' Aggregates" = '73%';