You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "What rank due to contract killings or assassinations, kidnapping, drug trafficking, money laundering, black marketeering, and other ordinary crimes is a widespread and growing problem in Afghan society did Transparency International's 2016 Corruption Perceptions Index give Afghanistan?" whose answer is 169 of 176.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Transparency International's 2016 Corruption Perceptions Index Afghanistan
Useful Output:

Doc 1: The high levels of corruption in Afghanistan -- which was ranked 166th -- Iraq (161st), Turkmenistan (156th), and Uzbekistan (153rd) placed them
Doc 2: The latest ranking shows a considerable improvement as compared to the previous year of 2015 where Afghanistan secured 11 points and was placed among the most
Doc 3: Afghanistan's rank in Transparency International's annual Corruption Perceptions Index (CPI). Afghanistan floundered in corruption perception
Doc 4: Corruption Index in Afghanistan averaged 15.63 Points from 2005 until 2024, reaching an all time high of 25.00 Points in 2005 and a record low of 8.00 Points
Doc 5: In 2016, more than 70 per cent of Afghans thought that corruption was worse than it had been in 2014 when a similar survey was conducted. An