It involves adding up all the points pupils achieved in the three subjects, then dividing this by the number of pupils eligible to take the tests.

BBC: NEWS | UK | Education | Guide to the primary school tables

Many observers have suggested that adding at least three women to any type of team effort improves performance because a non-token number (three) counters group think, one of the greatest obstacles to creativity and innovation.

FORBES: Speak Up! More Women Make Team Smarter