According to NPR in 2005, about 3% of illegal immigrants were working in agriculture. The H-2A visa allows U.S. employers to bring foreign nationals to the United States to fill temporary agricultural jobs. The passing of tough immigration laws in several states from around 2009 provides a number of practical case studies. The state of Georgia passed immigration law HB 87 in 2011; this led, according to the coalition of top Kansas businesses, to 50% of its agricultural produce being left to rot in the fields, at a cost to the state of more than $400 million. Overall losses caused by the act were $1 billion; it was estimated that the figure would become over $20 billion if all the estimated 325,000 unauthorized workers left Georgia. The cost to Alabama of its crackdown in June 2011 has been estimated at almost $11 billion, with up to 80,000 unauthorized immigrant workers leaving the state.