user: Question: What highest Year has Wins 15 and Losses less than 5?
Columns: ['Year', 'Competition', 'Wins', 'Draws', 'Loses']
Types: ['real', 'text', 'real', 'real', 'real']
Sample row: [1971.0, 'NSWRFL', 19.0, 0.0, 3.0]
SQL:

assistant: SELECT MAX("Year") FROM "Table" WHERE "Wins" = 15.0 AND "Loses" < 5.0;