Linking primary schools to their nearest secondary school gives 3,300 clusters in England. The 2007 workforce census showed there were 3,162 (2,232 full-time equivalent) qualified nurses working in school health services, an increase of 753 or 31.25 per cent. since 2004. Of these, there were 1,227 (893 whole-time equivalent) nurses with the post registration school nurse qualification. This is an increase of 371 or 43.3 per cent, since 2004. In addition, the number of nurses working in the community increased by 28,235 (37 per cent.) between 1997 and 2007.