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:
New_York_City

Context:
Each year HHC's facilities provide about 225,000 admissions, one million emergency room visits and five million clinic visits to New Yorkers. HHC facilities treat nearly one-fifth of all general hospital discharges and more than one third of emergency room and hospital-based clinic visits in New York City.

Question:
What fraction of emergency room visits receive treatment at HHC?

one third