For coloring map of BELGIUM :
You can use this sample statistics excel(.xls) file below.
Download the file and insert your statistical data to DATA coulumns.
You can change DATA1,DATA2... as data title you want.
Important Please don't change CITY and ID coulumns in the file
Upload your statistical data below
Places on the map : Antwerp, Brussels Capital Region, East Flanders, Flemish Brabant, Hainaut, Liege, Limburg, Luxembourg, Namur, Walloon Brabant, West Flanders