So...only 5 years. This is admirable! Here, in my country to finish a building like this, it means at least 10 years! For example...in my city the construction work on the metro has begun (it will be the 2nd city with metro in Romania), and according to the current situation, it is estimated that it will be completed in 20 years (twenty years)... I am talking about about 30 km of metro line...