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.


What are cookies? - 'Cookies' are small text files that are stored by a browser (e.g. Internet Explorer, Firefox, Google Chrome or Safari) on your computer. They allow websites to store such things as user preferences, providing a "memory" for the website and enabling it to recognise a user and respond appropriately.

When you register for an account with us, we generate cookies that signal whether you are signed in or not, and if you are allowed access to a particular service.

If you have not selected 'keep me signed in,' your cookies will be deleted when you shut down your computer or close your browser.

Every time a user visits our website, web analytics software provided by a third party generates an anonymous analytics cookie. These cookies can tell us whether or not you have visited the site before.

Your browser will tell us if you have these cookies, and if you don't, we generate new ones. This allows us to track how many individual unique users we have, and how often they visit the site.

These cookies are used for statistical purposes only.