In this task, you're given passages that contain mentions of a time duration related quesry and we are supposed to write answer to a question that involves event “frequency", which refers to how often an event is likely to be repeated. For example, "taking showers" typically occurs ~5 times a week, "going to saturday market" usually happens every few weeks/months, etc. 
 Note that a lot of the questions could have more than one correct answers. We only need a single most-likely answer. Please try to keep your "answer" as simple as possible. Concise and simple "answer" is preferred over those complex and verbose ones.  

Example Input: Sentence: iPods have been criticized for alleged short life-span and fragile hard drives. A 2005 survey conducted on the MacInTouch website found that the iPod line had an average failure rate of 13.7% (although they note that comments from respondents indicate that "the true iPod failure rate may be lower than it appears"). It concluded that some models were more durable than others. In particular, failure rates for iPods employing hard drives was usually above 20% while those with flash memory had a failure rate below 10%. In late 2005, many users complained that the surface of the first generation iPod Nano can become scratched easily, rendering the screen unusable. A class action lawsuit was also filed. Apple initially considered the issue a minor defect, but later began shipping these iPods with protective sleeves.[citation needed] 
Question: How often did MacInTouch discover iPods stopped working, according to their survey?
Example Output: 13.7%

Example Input: Sentence: Also founded in 1935 and based in Detroit the Michigan Chronicle is one of the oldest and most respected African-American weekly newspapers in America. Covering politics, entertainment, sports and community events. The Detroit television market is the 11th largest in the United States; according to estimates that do not include audiences located in large areas of Ontario, Canada (Windsor and its surrounding area on broadcast and cable TV, as well as several other cable markets in Ontario, such as the city of Ottawa) which receive and watch Detroit television stations. 
Question: How often does the Michigan Chronicle publish?
Example Output: weekly

Example Input: Sentence: The BBC domestic television channels do not broadcast advertisements; they are instead funded by a television licence fee which TV viewers are required to pay annually. This includes viewers who watch real-time streams of the BBC's channels online or via their mobile phone. The BBC's international television channels are funded by advertisements and subscription. 
Question: How often are people required to remit the TV license fee?
Example Output:
annually