Source: IPSOS/RSL. Media UK uses national audience data where it exists. These figures are not always comparable between surveys.
Full datasets used: Jun 1999: Mercia FM; Sep 1999: Mercia FM; Dec 1999: Mercia FM; Mar 2000: Mercia FM; Jun 2000: Mercia FM; Sep 2000: Mercia FM; Dec 2000: Mercia FM; Mar 2001: Mercia FM; Jun 2001: Mercia FM; Sep 2001: Mercia FM; Dec 2001: Mercia FM; Mar 2002: Mercia FM; Jun 2002: Mercia FM; Sep 2002: Mercia FM; Dec 2002: Mercia FM; Mar 2003: Mercia FM; Jun 2003: Mercia FM; Sep 2003: Mercia FM; Dec 2003: Mercia FM; Mar 2004: Mercia FM; Jun 2004: Mercia FM; Sep 2004: Mercia FM; Dec 2004: Mercia FM; Mar 2005: Mercia FM; Jun 2005: Mercia FM; Sep 2005: Mercia FM; Dec 2005: Mercia FM; Mar 2006: Mercia FM; Jun 2006: Mercia FM; Sep 2006: Mercia FM; Dec 2006: Mercia FM; Mar 2007: Mercia FM; Jun 2007: Mercia FM; Sep 2007: Mercia; Dec 2007: Mercia; Mar 2008: Mercia; Jun 2008: Mercia; Sep 2008: Mercia; Dec 2008: Mercia; Mar 2009: Mercia; Jun 2009: Mercia; Sep 2009: Mercia; Dec 2009: Mercia; Mar 2010: Mercia; Jun 2010: Mercia; Sep 2010: Mercia; Dec 2010: Mercia; Mar 2011: Mercia; Jun 2011: Mercia; Sep 2011: Mercia; Dec 2011: Mercia;