user: Question: What is the most recent year in which the winner record is Ireland 4 points?
Columns: ['Year', 'Host Nation(s)', 'Final Venue', 'Winner', 'Result', 'Runner-up']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [2000.0, 'England', 'Northampton', 'Ireland 6 points', 'Ireland won on points table', '[[|]] 2 points']
SQL:

assistant: SELECT MAX("Year") FROM "Table" WHERE "Winner" = 'Ireland 4 points';