Multi-series grouped column charts have one or more linear side-by-side groups of vertical columns, with a different color for each series.
Our Global Sales demo charts show groups of product quantity totals sold in US, France and UK, in three different years. The multiple series are the US, France and UK countries. The values for each year are 2007, 2008 and 2009. Remark the horizontal X axis is a category axis: year values are distributed at equal intervals on the axis. Quantity value colums for each year are displayed side-by-side for each country. All columns for a specific country have a different distinct color. First country uses the first palette color, second country the second palette color and so on.