The information is not collected in the format requested. Information is collected centrally on the average (median) time to treatment for category A calls at individual ambulance trust level. Treatment is defined as the arrival of a health professional dispatched by the ambulance service for immediately life-threatening calls. Category A calls are divided into Red 1, immediately life threatening, and Red 2, serious but less immediately time critical; however average response times are only collected at the level of category A. It is not statistically correct to combine medians to get an annual position. The following tables show the average time to treatment for category A calls at each English NHS ambulance trust in each month since data were first collected in 2011-12. Information on the average response times for category C calls in not collected centrally. Mediantime to treatment for Category Acalls—Split byambulanceservice Minutesandseconds NorthEast Ambulance Service NHS FoundationTrust NorthWest Ambulance Service NHSTrust YorkshireAmbulance Service NHSTrust EastMidlands Ambulance Service NHSTrust WestMidlands Ambulance Service NHS FoundationTrust Eastof England Ambulance Service NHSTrust 2011 April 5.10 4.09 5.22 5.38 5.34 4.36 May 5.05 4.59 5.14 5.48 5.32 4.38 June 5.08 5.09 5.13 6.01 5.45 4.38 July 5.15 4.58 5.19 5.57 5.32 4.37 August 5.16 4.41 5.13 6.02 5.34 4.28 September 5.29 4.49 5.09 6.02 5.38 4.35 October 5.28 4.52 5.20 6.07 5.35 4.31 November 5.11 4.52 5.09 5.56 5.31 4.45 December 5.30 5.01 5.23 6.12 5.33 4.55 2012 January 5.17 4.49 5.00 5.54 5.20 4.45 February 5.39 5.03 5.18 6.17 5.47 4.58 March 5.44 5.00 5.04 5.46 5.46 4.39 April 5.33 5.35 4.56 5.53 5.28 4.45 May 5.41 5.40 5.00 5.58 5.35 4.30 June 5.59 5.08 5.04 6.08 5.54 4.51 July 6.07 5.07 5.20 6.15 5.56 4.39 August 5.56 5.12 5.19 6.10 6.02 4.33 September 5.47 5.19 5.28 6.16 6.03 5.06 October 5.59 5.22 5.30 6.18 5.50 5.00 November 6.01 5.26 5.28 6.38 5.48 4.54 December 6.42 5.39 6.02 7.09 6.10 5.26 2013 January 6.11 5.27 5.39 6.35 5.51 5.13 February 5.39 5.33 5.40 6.24 6.12 5.25 March 5.40 5.33 5.28 6.47 6.34 5.25 April 5.45 5.20 5.18 6.26 6.12 6.13 May 5.49 5.11 5.14 6.16 5.51 6.07 June 5.42 5.06 5.17 6.19 5.50 6.17 July 5.53 5.21 5.34 6.36 6.16 6.36 August 5.48 5.14 5.35 6.40 6.06 6.00 Minutesandseconds LondonAmbulance Service NHSTrust SouthCentral Ambulance Service NHS FoundationTrust Isleof Wight NHSTrust SouthEast Coast Ambulance Service NHS FoundationTrust SouthWestern Ambulance Service NHS FoundationTrust GreatWestern Ambulance Service NHSTrust 2011 April 5.36 5.51 3.00 5.38 5.06 5.36 May 5.42 5.54 4.00 5.37 5.06 5.24 June 5.54 5.59 4.00 5.32 5.18 5.30 July 5.36 5.54 7.00 5.22 5.06 5.24 August 5.24 5.53 6.00 5.25 5.06 5.24 September 5.48 6.04 5.36 5.31 5.12 5.30 October 5.36 6.03 6.17 5.23 5.18 5.29 November 5.30 6.05 6.06 5.10 5.06 5.28 December 5.48 6.29 6.22 5.21 5.12 5.36 2012 January 5.18 6.05 6.16 5.09 5.18 5.24 February 5.42 6.22 5.23 5.37 5.24 5.40 March 5.36 6.50 5.30 5.28 5.24 5.28 April 5.36 5.58 6.06 5.20 5.18 5.30 May 5.54 6.06 6.05 5.24 5.18 5.24 June 5.48 6.01 6.16 5.48 5.18 5.24 July 5.42 6.24 6.05 5.36 5.36 5.36 August 5.24 6.05 6.13 5.31 5.24 5.30 September 6.06 5.49 6.13 5.46 5.42 5.36 October 6.00 6.01 6.09 5.38 5.42 5.42 November 6.06 5.59 6.06 5,29 5.36 5.48 December 6.36 6.28 6.11 5.53 5.48 5.54 2013 January 5.30 5.57 6.12 5.47 5.42 5.54 February 5.36 5.59 6.01 5.48 5.36 — March 5.36 6.08 6.00 6.06 6.00 — April 5.52 5.53 5.28 5.54 5.48 — May 5.42 5.41 5.33 5.41 5.42 — June 5.54 5.47 5.25 5.46 5.48 — July 6.06 6.21 5.35 5.58 6.06 — August 6.00 5.57 5.23 5.51 5.54 — Note: InFebruary 2013 Great Western merged with SouthWestern. Source: AmbulanceQuality Indicators, NHSEngland.