user: Question: Name the least year for Evonne Goolagong Helen Gourlay
Columns: ['Outcome', 'Year', 'Championship', 'Surface', 'Partner', 'Opponents', 'Score']
Types: ['text', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Winner', 1968.0, 'Australian Championships', 'Grass', 'Karen Krantzcke', 'Judy Tegart Dalton Lesley Turner Bowrey', '6–4, 3–6, 6–2']
SQL:

assistant: SELECT MIN("Year") FROM "Table" WHERE "Opponents" = 'Evonne Goolagong Helen Gourlay';