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_36 ( year INTEGER, score_in_final VARCHAR, championship VARCHAR, outcome VARCHAR )

### Question ###
What is the sum of Year(s), when Championship is 'Australian Open', when Outcome is 'Runner-Up', and when Score in Final is 3-6, 6-3, 6-2?

### Accurate SQL ###

SELECT SUM(year) FROM table_name_36 WHERE championship = "australian open" AND outcome = "runner-up" AND score_in_final = "3-6, 6-3, 6-2"