This site uses cookies – small text files that are placed on your machine to help the site provide a better user experience. In general, cookies are used to retain user preferences and provide anonymised tracking data to third party applications like Google Analytics. As a rule, cookies will make your browsing experience better. However, you may prefer to disable cookies on this site and on others. The most effective way to do this is to disable cookies in your browser. We suggest consulting the Help section of your browser or taking a look at the About Cookies website which offers guidance for all modern browsers.

Please note that this site has links to other websites. These are included to provide you with further information, should you desire it. These sites will also use cookies but we have no control over them. You are advised to read the cookie policy for each site you visit to determine if you happy to continue using it.