http://www.statistics.gov.uk/pic/index.html
This is quite an interesting tool to show how much your personal inflation rate is compared to the quoted random one

It does show rates over the last 18 months and the funny thing is when the rate was highest for me I noticed it but the official rate seemed to have a large gap to what I was noticing.
To see it you'll need the Adobe SVG viewer.
http://www.adobe.com/svg/
My quoted rate over the last year was always higher than the official one. I would be interested to see if anyone had an inflation rate that was lower.... It also assumes a total annual spend of £24k! I hope this is a household spend as otherwise this explains why everyone is up to their eyes in debt if the government assume household income is about £50k which would be the only way you could afford to spend like that!