To enable this service to function, we sometimes place small data files on your computer. These are known as cookies.

To learn more about cookies and how to manage them, visit Or please read on to find out more about how and where we use cookies.

How we use cookies

This service uses essential cookies in some places – we've listed each of them explicitly in a table below with more details about why we use them and how long they will last.

These essential cookies are used for site navigation and session management, and this service may not function correctly without them.

This service may use non-essential cookies in some places. These non-essential cookies are not required to make the service function correctly. If any non-essential cookies are used in this service, you will find them listed below.

Google analytics

We also use Google analytics which is a web analytics service provided by Google. We use the information from Google analytics to help improve our website.

Google analytics uses cookies to help analyse how users use the site. The information generated by the cookie about your use of the service, including your IP address, will be transmitted to and stored by Google on servers in the United States.

Google use this information to evaluate how you use our website, including website activity and the services relating to website activity and internet usage. Google may transfer this information to third parties where required by law, or where third parties process the information on Google’s behalf. Google will not associate your IP address with any other data held by Google.

See Google's privacy policy for more information.