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The cookies we use are ‘analytical’ cookies. They allow us to recognise and count the number of visitors and to see how visitors move around the site when they’re using it. This helps us to improve the way our website works, for example by making sure users are finding what they need easily.
As a rule, cookies will make your browsing experience better. However, you don’t have to accept cookies on this site. The most effective way to disable cookies is in your browser. We suggest consulting the Help section of your browser or taking a look at the Cookies and You website which offers guidance for all modern browsers