Table schema:
CREATE TABLE table_name_38 (international_tourist_arrivals__2012_ VARCHAR, international_tourist_arrivals__2011_ VARCHAR)

Question: How many tourists visited the country that had 2.5 million tourists in 2011?
SQL: SELECT international_tourist_arrivals__2012_ FROM table_name_38 WHERE international_tourist_arrivals__2011_ = "2.5 million"