IATA says air carriers that participate in its operational safety audits (IOSA) had a 62 percent better accident rate than non-IOSA airlines through November 2013. Worldwide, about 65 percent of all commercial flights operate under the IOSA umbrella, including those of 149 airlines that are not IATA members, representing nearly 84 percent of the world’s air traffic. In Africa, which has the highest accident rate by region, only 14 percent of accidents involved IOSA-compliant operators. Although the 2013 tally of 11 Western-built jet hull losses worldwide has not matched 2012’s record of five (zero for IATA members), the number of fatalities is considerably lower, at 210 versus 403.