the serving of such a dish often implies that the host is willing to use cruelty and brutality to achieve their goals, with 58% of those questioned in the WWF survey indicating they ate the soup at a celebration or gathering. In Hong Kong restaurants, where the market had been strong, demand from Hong Kong natives had reportedly dropped in 2006. This was more than balanced by an increase in demand from the Chinese mainland, where economic growth put the expensive delicacy within the reach of an expanding middle class. A survey carried out in China in 2006 by WildAid and the Chinese Wildlife Conservation Association found that 35% of participants said they had consumed shark fin soup in the last year, while 83% of participants in an online survey conducted by the World Wide Fund for Nature said that they had consumed shark fin soup at some time. Changes in demand, 2005–present The movement against shark fin soup began in 2006, when WildAid enlisted Chinese basketball star Yao Ming as spokesperson for a public relations campaign against the dish. The campaign was taken up by a coalition of Chinese businessmen, celebrities, and students. Businessman-turned-environmentalist Jim Zhang helped to raise concern within China's government, which pledged in 2012 to ban shark fin soup from official banquets within three years. In January 2013, China Daily reported that officials in Zhejiang province found that many shark fin soup restaurants were selling artificial shark fins, and that one-third of the samples that the officials had obtained contained dangerous amounts of cadmium and methylmercury. Within two months of the China Daily report, China ordered officials throughout the country to stop serving dishes made from protected wildlife at official banquets, and the Hong Kong government issued a similar order in September. Consumption of shark fin soup in China has decreased. China's Ministry of Commerce indicated that consumption of shark fin soup during the 2013 spring break holiday had decreased by 50–70% from 2012, and Hong Kong industry groups reported that shark fin imports were down by 20–30% from 2012. Also, anecdotal evidence points to a worldwide drop in shark fin prices and a move away from shark fishing in parts of Africa. A 2016 poll from City University of Hong Kong and the Hong Kong Shark Foundation had 75% of local respondents saying they were "neutral" towards the soup at banquets, while 90% of respondents