Hi,
I have a query regarding bar chart. In this analysis, we need find out from the year 2007 to 2010, how many times GY1, GY2 and GY3(group names) are ranked in each year (shown as numbers under bars on the graph below). And within each year’s bars we’d also like to know what the proportions are respectively that GY1, GY2 and GY3 are ranked as 1st, 2nd and 3rd (shown as percentages within each bars).

How to accomplish this?