Totally off topic, but the G7 Countries are:
The UK ranking is a it tricky as it depends on the exchange rate of the Pound. There was a period in the 80s when the UK GNP was actually lower than the Italian, so they were 6th. Two years ago the strong Pound made the UK surge over France but difference in minimal (and things could have already changed).
GNP per capita is a different story (there are countries with a higher one than the US) and maybe more interesting for Airlines.
Yet possibly too a complicated topic for Alitalia management
(just kidding, I love them!)