Context: Between 1832 and 2002 the currency of Greece was the drachma. After signing the Maastricht Treaty, Greece applied to join the eurozone. The two main convergence criteria were a maximum budget deficit of 3% of GDP and a declining public debt if it stood above 60% of GDP. Greece met the criteria as shown in its 1999 annual public account. On 1 January 2001, Greece joined the eurozone, with the adoption of the euro at the fixed exchange rate ₯340.75 to €1. However, in 2001 the euro only existed electronically, so the physical exchange from drachma to euro only took place on 1 January 2002. This was followed by a ten-year period for eligible exchange of drachma to euro, which ended on 1 March 2012.

Question: What was the currency of Greece until 2002?
Answer: drachma

Question: What did Greece sign to apply to join the eurozone?
Answer: Maastricht Treaty

Question: How many convergence criteria were there in the treaty?
Answer: two

Question: When did the physical exchange of the drachma to euro take place?
Answer: January 2002

Question: When did the ten-year period for eligible exchange of the drachma to euro end?
Answer: March 2012

Question: What was the banned currency of Greece until 2002?
Answer: Unanswerable

Question: What did Greece sign to apply to leave the eurozone?
Answer: Unanswerable

Question: How many convergence criteria were ignored in the treaty?
Answer: Unanswerable

Question: When did the physical exchange of the drachma to euro become illegal?
Answer: Unanswerable

Question: When did the twenty-year period for eligible exchange of the drachma to euro end?
Answer: Unanswerable