We still lack comparable data on domestic violence in EU countries. However, you can find some information on policies, surveys, research results etc. on the WWP European Network website: https://www.work-with-perpetrators.eu/resources/international-data
Besides raising the awareness, we can (and should!) improve education system on the 1st and 2nd level, especially for girls: when they are empowered, they will eliminate potential agressors from their life.