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_13681_2 ( country VARCHAR, currency_name VARCHAR )

### Question ###
how many country with currency name being republika srpska dinar

### Accurate SQL ###

SELECT COUNT(country) FROM table_13681_2 WHERE currency_name = "Republika Srpska dinar"