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: GWR FM; Sep 1999: GWR FM; Dec 1999: GWR FM; Mar 2000: GWR FM; Jun 2000: GWR FM; Sep 2000: GWR FM; Dec 2000: GWR FM; Mar 2001: GWR FM; Jun 2001: GWR FM; Sep 2001: GWR FM; Dec 2001: GWR FM; Mar 2002: GWR FM; Jun 2002: GWR FM; Sep 2002: GWR FM; Dec 2002: GWR FM; Mar 2003: GWR FM; Jun 2003: GWR FM; Sep 2003: GWR FM; Dec 2003: GWR FM; Mar 2004: GWR FM; Jun 2004: GWR FM; Sep 2004: GWR FM; Dec 2004: GWR FM; Mar 2005: GWR FM; Jun 2005: GWR FM; Sep 2005: GWR FM; Dec 2005: GWR FM; Mar 2006: GWR FM; Jun 2006: GWR FM; Sep 2006: GWR FM; Dec 2006: GWR FM; Mar 2007: GWR FM; Jun 2007: GWR FM; Sep 2007: GWR; Dec 2007: GWR; Mar 2008: GWR; Jun 2008: GWR; Sep 2008: GWR; Dec 2008: GWR; Mar 2009: GWR; Dec 2010: Heart West Country; Mar 2011: Heart West Country; Jun 2011: Heart West Country; Sep 2011: Heart West Country; Dec 2011: Heart West Country;