The data below shows students enrolment in a particular university for the past 4years Country Year 2011 2012 2013 2014 2015 Ghana 85 88 78 61 68 Nigeria 53 62 94 73 78 Togo 32 52 81 65 84 Burkina Faso 37 43 56 89 70 Benin 21 23 61 80 93 Using excel. i. Express the data for 2011 in the form of a simple bar chart. ii. Express the data for 2012 in the form of pie chart. iii. Express the entire data in the form of a multiple/group bar chart