Opinion polling has been commissioned throughout the duration of the 23rd parliamentary term and in the leadup to the 2011 election by various organisations. The sample size, margin of error and confidence interval of each poll varies by organisation and date.

Poll results Results of several polling organisations together: Date Organisation AK Party CHP MHP BDP SP DSP May 2010 SONARCHP %32.48 ile AK Parti'yi geçti, CNNTURK, 30 Mayıs 2010. 31.09 32.48 18.59 4.27 3.74 3.53 June 2010 Denge 42.4 27.2 11.6 6.1 4.3 – July 2010 SONAR 31.1 33.5 15.5 5.1 3.3 3.1 August 2010 Konsensus 40.1 30.6 12.0 – – – August 2010 SONARSONAR Ağustos 2010 Referandum ve seçim anketi sonuçları açıklandı, Hürriyetport, August 11, 2010. 37.23 31.20 13.59 4.02 2.39 3.29 September 2010 Andy-ar 44.1 25.3 10.3 5.7 5.8 – November 2010 AKP 46.8 25.0 12.7 6.0 2.0 – December 2010 Konsensus 40.9 26.0 15.6 7.5 – – December 2010 A&G 44.0 31.0 10.0 – – – December 2010 ORC 40.7 23.3 12.1 5.9 5.4 – January 2011 Metropoll 43.5 30.7 13.8 6.5 1.3 – February 2011 USADEM 46.70 27.40 11.21 7.65 – – March 2011 İKSara 48 28 15 4,5 1 – March 2011 MetroPoll 48.3 27.5 11.7 6.6 2 – March 2011 Konsensus 46.4 25.8 13.6 5.7 2 – April 9, 2011 GENAR 47.9 24.4 12.2 4.5 2.8 – April 2011 ORC 50.1 24.5 11.7 4.0 6.1 – April 30, 2011 GENAR 48.7 25.2 11.9 6.4 - – April 2011 İKSaraIKSara Arastirma Sirketi Secmenin Nabzini Tuttu 46.4 30.3 13.5 5.4 1.4 – April 2011 Marmara 47.1 27.4 11.2 6.0 1.3 0.9 April 2011 AKAM 41.8 25.8 15.1 6.0 3.6 – 20 May 2011 ORC 49.5 25.2 11.3 5.1 6.8 –

Poll results by Andy-Ar Results of Andy-Ar: Date AK Party CHP MHP BDP SP DP DSP BBP HSP Others November 2010 46.4 24.7 10.2 5.9 1.4 1.2 0.8 1.1 2.9 5.4 December 2010 46,8 26,1 10,6 5,9 1,7 0,9 0,5 2,6 2,8 2,1 January 2011 48,3 25,2 10,6 6,9 2,2 0,5 0,3 2,1 1,1 2,8 February 2011 48,8 26,2 10,4 6,8 1,6 0,4 0,4 2,6 0,9 1,9 March 2011 48,2 26,8 11,2 5.8 1,2 – – 2,2 2,1 2.5 April 2011 51.2 28.8 10.7 4.3 – – – – – – May 2011 52 27 10.5 7 – – – – – –

Poll results by Konsensus Results of Konsensus Research & Consultanty: Date AK Party CHP MHP BDP SP Others June 2010 40,6 30,6 12,0 5,4 2,3 9,6 July 2010 41,1 29,8 12,7 6,2 3,8 6,2 August 2010 44,9 27,0 12,3 5,2 3,0 7,6 September 2010 46,9 24,5 10,6 8,7 3,5 5,8 October 2010 44,8 25,1 12,9 6,7 3,4 7,1 November 2010 40,9 26,0 14,2 7,5 2,5 8,9 December 2010 46,0 26,5 12,5 6,7 3,2 5,1 January 2011 49,6 26,8 11,1 6,9 0,8 4,0 February 2011 46,4 25,8 13,6 5,7 2,2 6,3 March/April 2011 48,9 25,8 10,9 6,0 1,8 2,5 May 2011 48,6 28,3 11,6 6,0 1,2 1,7

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