We collect anonymous web statistics from our website to help us understand how many people access it, how it is used, and to help us improve the user experience of our website. We use Google Analytics to do this. They store several cookies on users' computers or mobiles which are used to collect information to analyse which parts of the site are most useful to our visitors. We also use this kind of cookie to track errors and missing files. The information is used only for web analytics and no personal details are stored.

The information we collect includes:

• The name of your internet service provider and the internet protocol (IP) address you are using. This may or may not identify a specific computer.
• The date and time you visit our website, and the pages you look at.
• The internet address of any websites which have linked you directly to our site.

To opt out of being tracked by Google Analytics across all websites visit http://tools.google.com/dlpage/gaoptout.

For more information visit Google's privacy and terms