The number of investment arbitration cases, as well as the sum of money involved, has surged in the last two decades from 38 cases in 1996 (registered at ICSID, the World Bank’s body for administering such disputes) to 450 known investor-state cases in 2011. The amount of money involved has also expanded dramatically. In 2009/2010, 151 investment arbitration cases involved corporations demanding at least US$100 million from states.