36000
U.K. (United Kingdom) 1995:
31800
U.K. (United Kingdom) 1996:
30100
U.K. (United Kingdom) 1997:
33200
U.K. (United Kingdom) 1998:
26300
U.K. (United Kingdom) 1999:
23000
U.K. (United Kingdom) 2000:
17800
U.K. (United Kingdom) 2001:
10900
U.K. (United Kingdom) 2002:
5000
U.K. (United Kingdom) 2003: