Cookies
We use cookies to improve our website to meet your requirements.
The cookies we use don't collect personal data that could identify you but, if you want to restrict or block the cookies set by our website, you can do so through your browser settings.
How to control and delete cookies
You can restrict or block cookies through your browser settings. The 'Help' function within your browser should tell you how.
For more comprehensive information on how to restrict, block or delete cookies on a wide variety of browsers visit www.aboutcookies.org.
For information on how to do this on your mobile phone's browser, please refer to your handset manual.
Please be aware that restricting cookies may impact on the functionality of our website.
Cookies set by this website and third-party services
In this section you can find out more details about all of the cookies that are set by this website and the third-party services we use.
Cookies for estimating the number of visitors and usage volumes
Google Analytics sets cookies to help us accurately estimate the number of visitors to the website and volumes of usage. This is to ensure that the website is available when you want it and to help us understand what you want to use. We do not collect or store your personal information (for example your name or address) so this information cannot be used to identify who you are. We do not allow Google to use or share our analytics data.
The following cookies are set by Google Analytics:
| Name | Typical content | Expires |
|---|---|---|
| _utma | randomly generated number | 2 years |
| _utmb | randomly generated number | 30 minutes |
| _utmc | randomly generated number | when you close your browser |
| _utmx | randomly generated number | 2 years |
| _utmxx | randomly generated number | 2 years |
| _utmz | randomly generated number and information on how the site was reached (e.g. direct or via a link, organic search or paid search) | 6 months |
For further details on the cookies set by Google Analytics, please refer to the Google Code website. For more information regarding how to opt out. Please visit Google Analytics privacy overview (external link).
Cookies for recording your use of this website
We use a website statistics service called Siteimprove for web analytics. This service uses a cookie to help record your use of this website. It is used to collect statistics about site usage such as when you last visited the site. This information is then used to improve the user experience on our website.
This Siteimprove cookie contains a randomly generated ID used to recognise your browser when you read a page.
The cookie contains no personal information and is used only for web analytics.
| Name | Typical Content | Expires |
|---|---|---|
| nmstat | used to help record your usage of the site. | 1000 days after your last visit |
| SP.NET_SessionId | used to track the sequence of pages you look at during a visit. | When you close your browser |