Vietnam has been praised in two studies on its logistical capabilities and global connectivity. DHL’s second annual Global Connectedness Index (GCI)External Link / New Window, a detailed country-by-country analysis of the cross-border flows that connect the world’s economies. Vietnam was rated as one of its top five countries in terms of its development in the past six years, while the World Bank's 2012 Logistics Performance Index (LPI) rated the country one of its top four countries for logistics “over-performance” relative to its per capita GDP (i.e. the lower middle-income category).