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.  
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Question: Sentence: The school's sports teams, wearing crimson and royal blue, are called the Kansas Jayhawks. They participate in the NCAA's Division I and in the Big 12 Conference. KU has won thirteen National Championships: five in men's basketball (two Helms Foundation championships and three NCAA championships), three in men's indoor track and field, three in men's outdoor track and field, one in men's cross country and one in women's outdoor track and field. The home course for KU Cross Country is Rim Rock Farm. Their most recent championship came on June 8, 2013 when the KU women's track and field team won the NCAA outdoor in Eugene, Oregon becoming the first University of Kansas women's team to win a national title. 
Question: How many times has the male basketball team from Kansas won a national title?

Answer: five


Question: Sentence: To clean up pollution, the federal and local governments implemented numerous plans including the constant monitoring and reporting of environmental conditions, such as ozone and nitrogen oxides. When the levels of these two pollutants reached critical levels, contingency actions were implemented which included closing factories, changing school hours, and extending the A day without a car program to two days of the week. The government also instituted industrial technology improvements, a strict biannual vehicle emission inspection and the reformulation of gasoline and diesel fuels. The introduction of Metrobús bus rapid transit and the Ecobici bike-sharing were among efforts to encourage alternate, greener forms of transportation. 
Question: How often do citizens need to get their cars examined?

Answer: biannual


Question: Sentence: During the period from 1993 to 2011, FBI agents fired their weapons on 289 occasions; FBI internal reviews found the shots justified in all but 5 cases, in none of the 5 cases were people wounded. Samuel Walker, a professor of criminal justice at the University of Nebraska Omaha said the number of shots found to be unjustified was "suspiciously low." In the same time period, the FBI wounded 150 people, 70 of whom died; the FBI found all 150 shootings to be justified. Likewise, during the period from 2011 to the present, all shootings by FBI agents have been found to be justified by internal investigation. In a 2002 case in Maryland, an innocent man was shot, and later paid $1.3 million by the FBI after agents mistook him for a bank robber; the internal investigation found that the shooting was justified, based on the man's actions. 
Question: How many times were FBI shots not justified?

Answer:
5 cases