The information requested is not held centrally and could be provided only at disproportionate cost. However, a total of 453,544 badges have been issued since May 2004.
This can be broken down as follows:
Badges issued May 2004 to December 2005 162,859 January 2006 to December 2006 197,539 January 2007 to 25 May 2007 93,146