Statistics have been compiled on the basis of Belgians' tax returns. The figures show that the difference between high and low salaries has grown by a quarter between 1990 and 2007. Experts say that the growth in single parent families can explain why more people have to get by on a modest income.
It's especially in Brussels and Wallonia that wage differentials have increased. In Flanders the gap is less wide. The Flemish municipalities were the differentials are greatest include Sint-Genesius-Rode, Kraainem, Sint-Martens-Latem, Knokke-Heist and Schilde.
The wage differential chasm is smallest in Wervik, Laakdal, Opglabbeek and Overpelt.