1 October 1993 to 31 March 1997,8,
1 April 1997 to 5 January 1999,6,
6 January 1999 to 5 March 1999,5,
6 March 1999 to 5 February 2000,4,
6 February 2000 to 5 May 2001,5,
6 May 2001 to 5 November 2001,4,
6 November 2001 to 5 August 2003,3,
6 August 2003 to 5 December 2003,2,
6 December 2003 to 5 September 2004,3,
6 September 2004 to 5 September 2005,4,
6 September 2005 to 5 September 2006,3,
6 September 2006 to 5 August 2007,4,
6 August 2007 to 5 January 2008,5,
6 January 2008 to 5 November 2008,4,
6 November 2008 to 5 December 2008,3,
6 December 2008 to 5 January 2009,2,
6 January 2009 to 26 January 2009,1,
27 January 2009 to 29 October 2018,0.5,
30 October 2018 onwards,0.5 or such other rate as the Treasury may by regulations specify in respect of a period specified in the regulations,