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.  

Q: Sentence: Carrying a Louis Vuitton backpack filled with old disks and demos to the studio and back, West crafted much of his production for his debut album in less than fifteen minutes at a time. He recorded the remainder of the album in Los Angeles while recovering from the car accident. Once he had completed the album, it was leaked months before its release date. However, West decided to use the opportunity to review the album, and The College Dropout was significantly remixed, remastered, and revised before being released. As a result, certain tracks originally destined for the album were subsequently retracted, among them "Keep the Receipt" with Ol' Dirty Bastard and "The Good, the Bad, and the Ugly" with Consequence. West meticulously refined the production, adding string arrangements, gospel choirs, improved drum programming and new verses. West's perfectionism led The College Dropout to have its release postponed three times from its initial date in August 2003. 
Question: How many times was the release date for Kanye's first album pushed back?

A: 3
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Q: Sentence: The central part of the Sahara is hyperarid, with little to no vegetation. The northern and southern reaches of the desert, along with the highlands, have areas of sparse grassland and desert shrub, with trees and taller shrubs in wadis where moisture collects. In the central, hyperarid part, there are many subdivisions of the great desert such as the Tanezrouft, the Ténéré, the Libyan Desert, the Eastern Desert, the Nubian Desert and others. These absolute desert regions are characterized by their extreme aridity, and some years can pass without any rainfall. 
Question: How often does the Sahara go without rainfall?

A: years
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Q: Sentence: The club have entered the UK pop charts on four occasions under different titles during the 1980s and 1990s when many clubs released a song to mark their reaching the FA Cup Final. "The Boys in Blue", released in 1984, peaked at number 82. The following year the club scored their biggest hit when "Here We Go" peaked at 14. In 1986 the club released "Everybody's Cheering The Blues" which reached number 83. "All Together Now", a reworking of a song by Merseyside band The Farm, was released for the 1995 FA Cup Final and reached number 27. When the club next reached the 2009 FA Cup Final, the tradition had passed into history and no song was released. 
Question: How many times has the Everton FC entered the UK pop charts?

A:
four
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