The March 2006 edition of "Social Europe: the journal of the European Left" included a chapter called "Women and Social Democratic Politics" by Wendy Stokes. That chapter gave the proportion of female MEPs in each Group in the European Parliament. The results for each Group are given in the adjacent diagram. The horizontal scale denotes gender balance (0% = totally male, 100% = totally female, but no Group has a female majority, so the scale stops at 50%). The results are also given in the table below.