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The bar graph illustrates how the stock prices of four technology companies from 2011 to 2016. Overall, Facebook, Apple, and Yahoo had a movement trend, while Google remained unchanged. In addition, the stock price of Facebook topped the list, except Apple surpassed it in 2012. In terms of Facebook, a moderate increase was recorded from 7500 in 2011 to 20000 in 2016, representing a rise of a half of 12 millions . Meanwhile, Apple experienced a noticeble fluctuation throughout this period. This was fewer than 5000 in 2011, before peaking at more than 30 millions in 2012, topped the list in this year, with a subsequent dropping to more 5 millions in the final year Regarding the remaining technology companies, Yahoo showed a general fell. It was 7500 at the starting year, followed by a small declining to fewer than 5 millions in 2014, remaining unchanged in 2015, but later falled to 2500 in 2016. In contract, the stock price of Google recorded a levelling off 2000. This amount became the lowest During the period.