Okay.
The people from the Inter-Parliamentary Union, from AceProject and from Quota Project say the same thing as me. They are international institutions that monitor the scores obtained by the various parties. There is a great deal of surveillance worldwide on the subject. The evidence is copious.
The data I have, which are from reliable sources, pertain to 195 countries. As far as the statistics are concerned, I will provide tables and more specific sources in my brief. A panoply of data shows an undeniable effect. There is an increase of at least 10% when measures are applied. That's major.