Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE hosting_city (host_city VARCHAR); CREATE TABLE city (city_id VARCHAR)
### Question:
What are the GDP and population of the city that already served as a host more than once?
### Answer:
SELECT t1.gdp, t1.Regional_Population FROM city AS T1 JOIN hosting_city AS T2 ON T1.city_id = T2.host_city GROUP BY t2.Host_City HAVING COUNT(*) > 1