CREATE TABLE table_21117 ("Company" TEXT, "ICB Sector" TEXT, "Ticker symbol" TEXT, "Index weighting  ( % )  at 17 January 2013" TEXT, "Market cap. at April 2013  ( \\u20ac ) " TEXT)

Name the index weighting % for 17 januaary 2013 for rno
SELECT "Index weighting (%) at 17 January 2013" FROM table_21117 WHERE "Ticker symbol" = 'RNO'
SELECT "Index weighting (%) at 17 January 2013" FROM "table_21117" WHERE "Ticker symbol" = 'RNO'