The Nielsen Global Survey of Trust in Advertising was conducted between February 18 and March 8, 2013, and polled more than 29,000 consumers in 58 countries throughout Asia-Pacific, Europe, Latin America, the Middle East, Africa and North America. The sample has quotas based on age and sex for each country based on their Internet users, and is weighted to be representative of Internet consumers and has a maximum margin of error of ±%. This Nielsen survey is based on the behavior of respondents with online access only. Internet penetration rates vary by country. Nielsen uses a minimum reporting standard of 60 percent Internet penetration or 10 million online population for survey inclusion. The Nielsen Global Survey, which includes the Global Consumer Confidence Survey, was established in 2005.