This graph from www.businessinsider.com is a little out of date but shows clearly the trends and differences in per capita consumption.
A more up-to-date picture is painted by recent Vinexpo study. Here are a few of the key points;
Global wine consumption is predicted to reach 34.1 billion bottles by 2015
In both markets, per capita consumption is also on the rise. By 2015, US consumers are expected to be drinking 13 litres per adult per year, while in China they should be drinking an average of 1.9 to 2.0 litres per adult.
Expected 54.3 percent increase for the combined China-Hong Kong market.
By 2015, US consumers are expected to be drinking 13 litres per adult per year, while in China they should be drinking an average of 1.9 to 2.0 litres per adult.
Europe currently accounts for 62 percent of world wine consumption,
In key European markets, French, Italian and British per capita consumption is set to fall, by 4.4 percent, 2.7 percent, and 4.3 percent respectively. Germany is the European exception, with a forecast rise of 2.1 percent.
Globally speaking, the world is drinking more and better.
In wine exports, the French are holding their lead in terms of value, with exports worth $8.4 billion in 2010, up 1.9 percent from 2006.
Italy leads in volume, showing a 30-percent increase between 2006 and 2010, with 2010 exports bringing in $5.1 billion (four billion euros). Spanish wine exports earned $2.4 billion (1.9 billion euros) in 2010.
Source; New York Times