And you have the update problem, where people replace their computers every two to three years, whereas its six to eight years for TV.
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Joy of joys, after the next film is released, there will be a new Star Wars film every two to three years after that.
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We plan to release the first new Star Wars film in 2015, and then plan to release one film every two to three years.
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It used to be that we were replacing our business computers every two to three years, oftentimes around a release of Windows or just from frustration.
Iger is hoping to release a new Star Wars film every two to three years by mining the deep well of characters and mythology in the Star Wars world.
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For that reason Biophysical recommends that people over 40 and in good health take the test every two to three years, the better to measure the rate of change in values over time.
If you're at high risk of certain eye diseases, such as glaucoma, get an eye exam every two to four years up to age 40, then every one to three years between 40 and 54, and finally every one to two years at age 55 and older.
Moreover, guidelines from the American Dental Association state that healthy adults should have a bitewing X-ray no more than once every two or three years, and that there is little reason to X-ray patients who do not have symptoms.
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Every day for two years, students are given three cases a day to read and analyze, and then discuss with their fellow classmates the next day in class.
Typically one person in the United States is infected with swine flu every one to two years, although there have been 12 cases in the three-year period between December 2005 and January 2009.
Life expectancy has been rising by two or three years for every ten that pass, despite repeated forecasts that it was about to reach its limit.
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