Is it like this: 1977-1982 9 grade A 0-levels. 1982-1984 4 A levels? But I agree that for non-British folks it may be a professional lingo that very few if any know for sure.
Alex 3.1 GHz 13" MacBook Pro 2015, 8 GB RAM, OS 10.11.2, Office 2011, TimeWarner Cable 2.8 GHz Xeon Mac Pro 2010, 16 GB RAM, OS 10.11.2, Office 2011, LAN
