79. The charts below show the percentage of five kinds of books sold by a bookseller between 1972 and 2012. https://youtu.be/aKQJdw2tP34 3 Pie 13/8/2015 China 80. The charts below show the proportion of the energy produced from different sources in a country between 1985 and 2003. https://youtu.be/uMXkX65w4tc 2 Pie 29/8/2015 China 81. The graph below shows the number of people taking part in a wildlife survey in Britain between 2001 and 2009. https://youtu.be/JQ5PvnNGWQE Table 14/1/2016 China 82. The three pie charts below show the coffee production and consumption of coffee and where the profit goes around the world. https://youtu.be/imh6ssj_4Co 3 pie 23/1/2016 China 83. The graphs below show the different reasons of two groups of students to choose Dorrifod University. https://youtu.be/KuOV92ievUQ 2 pie 9/11/2013 Australia 84. The pie charts below show how the different types of courses were followed by the students during the years of 1984, 1994 and 2004. https://youtu.be/kkq2y2qI8Rk 3 pie 24/11/2012 – India 85.