Demand from Asia for goods from California has been growing, especially for almonds, pistachios and walnuts. In 2011 almonds overtook grapes as California’s second top commodity crop at $3.9 billion a year. California grows 80% of the world’s almond supply and the industry has been experiencing dramatic growth driven by demand from the newly affluent middle classes of India and China. Between 2010-2011 agricultural exports from California increased by $3 billion and revenues for almonds and walnuts increased by 30% in that same time period. In 2012 almond land was valued at $18,000 per acre and pistachio land at $25,000 per acre as compared to the average value of $7,200 per acre for farm real estate in California.