The bar graph illustrates the stock price for four technology firms (Facebook, Google, Apple, Yahoo) between 2011 and 2016.
Overall, the value of Facebook increased significantly, while the Yahoo fell constantly. Google remained steady throughout the period, and Apple was very unpredictable.
In 2011, Facebook and Yahoo started at the same level at around 7,500. After that, Facebook had an upward trend and reached a peak in 2016 at 20,000. In contrast, Yahoo fell every year to approximately 2,500 in 2016, but was stable in 2014 and 2015, having a stock prise at nearly 3,000.
Meanwhile, Google had the same price during all period at about 1,000. Apple had fluctuating trend. In 2011, it was less when 5,000. The next year it reach a high at significantly more than 30,000. In 2013, Apple plunge to about 7,000. After, it again rose to approximately 11,000. In 2015, Apple reach a low at nearly 2,500 and in 2016 increased to 5,500.
