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_name_8 (year INTEGER, runners_up VARCHAR, venue VARCHAR)

### Question ###
What is the average Year when Australia was the runner-up at victoria golf club?

### Accurate SQL ###

SELECT AVG(year) FROM table_name_8 WHERE runners_up = "australia" AND venue = "victoria golf club"