user: Question: Name the index weighting % for 17 januaary 2013 for RNO
Columns: ['Company', 'ICB Sector', 'Ticker symbol', 'Index weighting (%) at 17 January 2013', 'Market cap. at April 2013 (€)']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Accor', 'hotels', 'AC', '0.65', '6.02']
SQL:

assistant: SELECT "Index weighting (%) at 17 January 2013" FROM "Table" WHERE "Ticker symbol" = 'RNO';