In 1996 Vohor and President Jean-Marie Léyé were briefly abducted by the Vanuatu Mobile Force over a pay dispute and later released unharmed. A riot occurred in Port Vila in 1998 when savers attempted to withdraw funds from the Vanuatu National Provident Fund following allegations of financial impropriety, prompting the government to declare a brief state of emergency. A Comprehensive Reform Program was enacted in the 1998 with the aim of improving economic performance and cracking down on government corruption. At the 1998 Vanuatuan general election the UMP were unseated by the VP under Donald Kalpokas. However Kalpokas lasted only a year, resigning when threatened with a no confidence vote, being replaced by Barak Sopé of the MPP in 1999, who himself was unseated in a confidence vote in 2001. Despite the political uncertainty Vanuatu's economy continued to grow in this period, fuelled by high demand for Vanuatu beef, tourism, remittances from foreign workers, and large aid packages from the Asian Development Bank (in 1997) and the US Millennium Challenge fund (in 2005). Vanuatu was removed from the OECD list of 'uncooperative tax havens' in 2003 and joined the World Trade Organization in 2011.