The US is still the largest donator, closely followed by the United Kingdom, Japan and Sweden. But when the contributions are ranked according to the country`s gross national income, it places Norway on the top spot by 0.27 percent. Sweden, Luxenbourg, Denmark and the Netherlands are also in the top of the list.
This report is accessible on the web at : http://www.un.org/ecosoc/docs/report2008-adv.asp
Statistics is from 2006. 2007 is not yet available.