user: Question: What is the official 4+ rating of the episode with a 16-39 share of 24,59%?
Columns: ['Date', 'Episode', 'Official rating 4+', 'Share 4+', 'Official rating 16-39', 'Share 16-39']
Types: ['text', 'real', 'text', 'text', 'text', 'text']
Sample row: ['5 September 2010', 1.0, '4 261 993', '27,80%', '1 754 592', '25,95%']
SQL:

assistant: SELECT "Official rating 4+" FROM "Table" WHERE "Share 16-39" = '24,59%';