Ethyl alcohol is, next to water, the major component in wine. There are standards for the amount of alcohol permitted in wines which vary depending on the country of origin. Most wines available in the American market range from 8 to 15 percent (16 to 30 proof)...
A statement of alcohol content in percent by volume appears on most wine bottle labels. As an alternative some bottlers prefer to label wine with an alcohol content between 7 and 14 percent as "Table Wine" or "Light Wine."