user: 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?
Columns: ['Outcome', 'Year', 'Championship', 'Surface', 'Partner', 'Opponents in final', 'Score in final']
Types: ['text', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Runner-up', 1988.0, 'US Open', 'Hard', 'Jill Hetherington', 'Gigi Fernández Robin White', '6–4, 6–1']
SQL:

assistant: SELECT SUM("Year") FROM "Table" WHERE "Championship" = 'Australian Open' AND "Outcome" = 'Runner-up' AND "Score in final" = '3-6, 6-3, 6-2';