Show average value as a horizontal line in a column chart
Have created a column chart showing world GDP and World Merchandise
Exports(Annual percentage change) for the years 1995 to 2005. Want to show
the average GDP growth (1995-2005) and average export growth (1995-2005),
both as horizontal dotted lines on the chart. How do I do it? I am using
Microsoft office XP pro.
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