Which year did USA undergo a disaster?
CREATE TABLE table_name_15 (year VARCHAR, countries_affected VARCHAR)
SELECT year FROM table_name_15 WHERE countries_affected = "usa"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_15 (year VARCHAR, countries_affected VARCHAR) Question: Which year did USA undergo a disaster? [/INST] SELECT year FROM table_name_15 WHERE countries_affected = "usa" </s>