Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_68174 ( "Year" real, "Fighter" text, "Nation represented" text, "Sport" text, "Sanctioning body or league" text, "Weight class represented or contested" text )

### Question ###
Which nation won the boxing championship in 2012?

### Accurate SQL ###

SELECT "Nation represented" FROM table_68174 WHERE "Year" = '2012'