Below are various files giving more historical information about IVC.
The most recently updated ones are at the end.

(Because of the confidential nature of some of this data to access it you will need to log-on using a password which is ocasionally sent to members. If you would like access to this please ask. Log-on by entering the user and password into the boxes to the bottom left - it might be necessary to scroll down to find it).

To open a file in a new window/tab: right click on the file name.
To open in the same window: left click.