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.  
One example: Sentence: Namibia conducts a census every ten years. After independence the first Population and Housing Census was carried out in 1991, further rounds followed in 2001 and 2011. The data collection method is to count every person resident in Namibia on the census reference night, wherever they happen to be. This is called the de facto method. For enumeration purposes the country is demarcated into 4,042 enumeration areas. These areas do not overlap with constituency boundaries to get reliable data for election purposes as well. 
Question: How often does Namibia conduct a census?
Solution is here: every ten years
Explanation: Census is generally conducted every ten years in most countries like Namibia.

Now, solve this: Sentence: As of 2013, West has won a total of 21 Grammy Awards, making him one of the most awarded artists of all-time. About.com ranked Kanye West No. 8 on their "Top 50 Hip-Hop Producers" list. On May 16, 2008, Kanye West was crowned by MTV as the year's No. 1 "Hottest MC in the Game." On December 17, 2010, Kanye West was voted as the MTV Man of the Year by MTV. Billboard ranked Kanye West No. 3 on their list of Top 10 Producers of the Decade. West ties with Bob Dylan for having topped the annual Pazz & Jop critic poll the most number of times ever, with four number-one albums each. West has also been included twice in the Time 100 annual lists of the most influential people in the world as well as being listed in a number of Forbes annual lists. 
Question: How many times has Kanye placed in the annual Time Magazine people list?
Solution:
twice