[holding answer 8 October 2007]: Information regarding the number of national insurance numbers in issue in Cambridgeshire is not available.
The available information regarding the number of national insurance numbers in issue in the United Kingdom in each of the last 10 years is in the following table. This information is not available by tax year.
National insurance numbers in issue (million) 1997 66 1998 67 1999 68 2000 69 2001 70 2002 71 2003 72 2004 73 2005 76 2006 77 Notes: 1. In order to maintain the integrity of the system NINOs are not removed. For example, they are retained after a person dies or moves abroad. 2. Figures are rounded to the nearest 1 million.