The numbers of staff by ethnicity and sex at 31 March in each year was as follows:
Total White Asian Black Other Unknown Male Female 2006 1,627 1,286 91 161 48 41 866 761 2005 1,571 1,256 94 154 34 33 861 710 2004 1,520 1,085 79 138 36 182 811 709 2003 1,497 1,157 50 129 16 145 797 700 2002 1,443 1,081 40 95 16 211 762 681 2001 1,485 1,089 47 110 13 226 836 649 2000 1,421 1,043 44 105 11 218 760 661 1999 1,394 968 30 71 5 320 744 650 1998 1,392 986 26 72 10 298 755 637 1997 1,405 967 27 69 9 333 791 614