The most recent TI Australia media release notes that:
Approximately 900 million — or just over one in four — people living in 16 countries in Asia Pacific, including some of its biggest economies are estimated to have paid a bribe to access public services, according to a new public opinion poll from the anti-corruption movement Transparency International.
Transparency International spoke to nearly 22,000 people about their recent experiences with corruption for People and Corruption: Asia Pacific, part of the Global Corruption Barometer (GCB) series.