How cookies are used on this site?
This site uses small amounts of data stored on your computer called 'cookies' to collect information about how visitors use the website. You can control what cookies, if any, are stored on your computer.
What is a cookie?
Each website can send its own cookie to your browser if your browser's preferences allow it. Your browser is the computer program you use to access the internet. By default, your browser will only allow a website to access the cookies it's already sent to you, and not the cookies sent to you by any other website. This is to protect your privacy.
For more information go to: http://www.bbc.co.uk/webwise/guides/about-cookies.
What types of cookies do we use?
We use the following cookies:Cookies required to deliver site functionality:
These are cookies that are required for the operation of our website. Analytical/performance cookies:
They allow us to recognise and count the number of visitors and to see how visitors move around our website when they are using it. This helps us to improve the way our website works, for example, by ensuring that users are finding what they are looking for easily.
Services that need cookies to work
Some services need to store a cookie on your computer for them to work. These cookies are removed when you finish using the service. If cookies are blocked then these services will not work.
Controlling what cookies are stored on your computer
You can set most browsers to prevent cookies from being placed on your computer and you can delete all cookies that are already on your computer - for details, see aboutcookies.org. However, if you do this, some services and functionalities may not work.Google Analytics cookies
This site uses Google Analytics, a web analytics service provided by Google, Inc. Google Analytics sets a cookie in order to evaluate your use of the site.
Google stores the information collected by the cookie on servers in the United States. Google may also transfer this information to third parties where required to do so by law, or where such third parties process the information on Google's behalf. Google will not associate your IP address with any other data held by Google. By using the site, you consent to the processing of data about you by Google in the manner and for the purposes set out above.
You can choose to accept or decline the use of Google Analytics cookies using the cookie bar at the bottom of the page. If you have already clicked either accept or reject you can change your preference using the button below.
Cookies used on this site
The following are names of cookies that are currently used on this site. Each cookie includes a short description of what the cookie does and its expiry time.
|Cookie Name||Expiration Time||Description|
|_ga||2 years||Google Analytics: This is used to monitor traffic levels, search queries and visits to this website. Used to distinguish users.|
|_gid||24 hours||Google Analytics: This is used to monitor traffic levels, search queries and visits to this website. Used to distinguish users.|
|_gat||1 minute||Google Analytics: This is used to monitor traffic levels, search queries and visits to this website. Used to throttle request rate.|
These are site session cookies that allow us to register the way that a user interacts with the website.
When you close the browser this session information is automatically removed. You are unable to opt out of using these cookies as they are required for the site to function.