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Strictly necessary cookies

These essential cookies do things like:

• remember the notifications you've seen so we do not show them to you again
• remember your progress through a form
• enable core functionality such as website registration, security, network management and accessibility

Cookies always need to be on however they can be switched off by changing the settings on your browser.

Cookies that measure website use

We use Google Analytics software (Universal Analytics) to collect anonymised information about how you use this site. We do this to help make sure the site is meeting the needs of its users and to help us make improvements. We do not allow Google to use or share the data about how you use this site.

Google Analytics stores information about:

• how you got to the site
• the pages you visit on this site and how long you spend on them
• what you click on while you’re visiting the site