:"I dont believe they identify with the Greek identity or nation in quite the same way as Greek Greeks do." 

 :Well, you're wrong.  Greek Cypriots and people in Greece consider themselves one nation, despite having two states.  In the Greek language, there's two separate words for "Greek".  "Ellines", which refers to people of Greek culture, includes Greek-Cypriots.  "Elladites" refers specifically to the residents of the Greek Republic.  Cyprus shouldn't be part of the diaspora.  It's part of the homeland.  Anyone that disagrees then should consider amending the figure for people of Greek ancestry living in the UK, since the vast majority of UK Greeks are of Greek-Cypriot ancestry, and not from the Greek Republic.