On Friday, 14 September 2007, ORB International, an independent polling agency located in London, published estimates of the total war casualties in Iraq since the US-led invasion of Iraq in 2003.[1] At over 1.2 million deaths (1,220,580), this estimate is the highest number published so far. From the poll margin of error of +/-2.5% ORB calculated a range of 733,158 to 1,446,063 deaths. The ORB estimate was performed by a random survey of 1,720 adults aged 18+, out of which 1,499 responded, in fifteen of the eighteen governorates within Iraq, between August 12 and August 19, 2007.[2][3] In comparison, the 2006 Lancet survey suggested almost half this number (654,965 deaths) through the end of June 2006.