Next Election: May 2014 Company/Institution: Sigma-2 for El Mundo Publication: 19 May 2014 Field Period: 13-15 May 2014 Sample size: 1.111 Mode: Telephone Note: Comparison with Sigma-2 poll of May 11, 2014. The logo under each party name indicates membership in a European political party. NA indicates no affiliation with a European political party or parliamentary group in the European parliament.