Bordeaux used to have a significant production of white wines, with Entre-deux-Mers, a primarily white wine area. Unlike the style of dry white Bordeaux favoured today, with almost 100% Sauvignon Blanc and a heavy influence of new oak, the traditional Entre-deux-Mers whites had a high proportion of Semillion and were made in either old oak barrels or steel tanks. Starting in the 1960s and 1970s, these vineyards were converted to red wine production (of Bordeaux AOC and Bordeaux Supérieur AOC), and the production of white wine has decreased ever since. Today production of white wine has shrunk to about one tenth of Bordeaux's total production, with 11.0% of the vineyard surface in 2007 used for white wines (7.8% for dry, 3.2% for sweet).