I want to know the answer to the following question:
What led to the loss of power of traditional Greek parties?
All the background I'm provided with is that "The power of the traditional Greek political parties, PASOK and New Democracy, declined from 43% to 13% and from 33% to 18%, respectively, due to their support on the politics of Mnimonio and the austerity measures.". Is that enough to answer the question?