For this website to work properly it will sometimes place small data files on your computer. These are known as cookies. A cookie can’t read data from your hard disk or read cookie files created by other sites.

Cookies improve your experience of this website by remembering settings and information you’ve given so you don’t need to keep entering it. Google Analytics cookies measure how people use the website so we can make sure it meets everyone’s needs.

None of the cookies used by this website collect or contain any personal data about you. We will infer consent to use cookies by you continuing to use this website. To learn more about cookies and how to manage them using your browser settings, visit

Measuring website usage (Google Analytics)

We use Google Analytics to collect information about how people use this site. We do this to make sure it’s meeting its users’ needs and to understand how we could do it better.

Google Analytics stores information about what pages you visit, how long you are on the site, how you got here and what you click on. We do not collect or store your personal information (e.g. 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 Funtion Expires
_ga Randomly generated user ID number 2 years
_gat Randomly generated user ID number 2 years

We use Google’s analytics service in order to get information on how many people are visiting our site, what pages are being visited most, what operating systems and browsers are being used to look at our site, what size screen most of our users have and other bits of information which are really useful to web developers as it allows us to design websites which are best suited to the majority of people looking at them.

Google Analytics doesn’t collect any personal information – about the most identifiable datum collected is the Internet Protocol address of the computer being used to look at the site, which, if we were willing to accept a really quite high level of inaccuracy, would possibly tell us what country you were in.  (It is worth noting that if your computer didn’t tell us your IP address, there would be no way of sending you the pages you want to look at anyway).

To learn more about cookies and how to manage them, visit .