I want to know the answer to the following question:
What has the been a massive increase in the number of households with in Greece?
All the background I'm provided with is that "At the same time, there has been a massive increase in the proportion of households with a broadband connection, from 4% in 2006 to 55% in 2013 (compared with an EU average of 30% and 76%).". Is that enough to answer the question?
Answer: yes