You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
European_Central_Bank

Context:
The primary objective of the European Central Bank, as laid down in Article 127(1) of the Treaty on the Functioning of the European Union, is to maintain price stability within the Eurozone. The Governing Council in October 1998 defined price stability as inflation of under 2%, “a year-on-year increase in the Harmonised Index of Consumer Prices (HICP) for the euro area of below 2%” and added that price stability ”was to be maintained over the medium term”. (Harmonised Index of Consumer Prices) Unlike for example the United States Federal Reserve Bank, the ECB has only one primary objective but this objective has never been defined in statutory law, and the HICP target can be termed ad-hoc.

Question:
Where is the primary mission of the European Central Bank listed?

Article 127(1) of the Treaty on the Functioning of the European Union