With China's rapid economic development, the income of Chinese residents has risen steadily. In 2008, the gross national income per capita per atlas method amounted to USD 2 770 (global country ranking 130 out of 210 countries) and accordingly purchasing power parity amounted to USD 6 020 (global country ranking 122 out of 210 countries) (World Bank, 2009d). A total of 40.07 million people in rural areas lived below the poverty level,23 defined as CNY1 19624 (approximately USD 75) per capita per annum (National Bureau of Statistics of China, 2009).