EURYI applications were first submitted to the relevant national research councils, who could nominate a specific number of candidates. This selection cut the proportion of women from one-quarter to one-fifth. Each national research council oversaw a drop in the number of selected women. In Spain, where nearly a third of the applicants were women, not one was nominated. The all-male Spanish list emerged with the highest success rate in the later European rounds, nearly three times the average. From 133 national nominees, European evaluation committees created a shortlist of 67, causing the largest drop in the proportion of women: 9.90+/-.5% of men applying made the European short list , but only 4.7+/-1.4% of women did. [cite]
For more see here.