Australia has a large wine industry, and the value of wine exports surpassed A$2.3 billion in 2002-2003. Wine regions include the Barossa Valley in South Australia, Sunraysia in Victoria, Margaret River in Western Australia and the Hunter Valley in New South Wales. The key wine varieties grown in Australia (by area in 2001-2002) are Chardonnay, Shiraz and Cabernet Sauvignon. Although the Australian wine industry enjoyed a large period of growth during the 1990s, over planting and over supply have led to a large drop in the value of wine, forcing some wine makers, especially those on contracts to large wine producing companies, out of business. The future for some Australian wine producers is now uncertain.