Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Outcome | Year | Championship | Surface | Partner | Opponents | Score |
| --- | --- | --- | --- | --- | --- | --- |
| Winner | 1968.0 | Australian Championships | Grass | Karen Krantzcke | Judy Tegart Dalton Lesley Turner Bowrey | 6–4, 3–6, 6–2 |
| Runner-up | 1970.0 | Australian Open | Grass | Karen Krantzcke | Margaret Court Judy Tegart Dalton | 6–3, 6–1 |
| Runner-up | 1973.0 | Australian Open | Grass | Kerry Harris | Margaret Court Virginia Wade | 6–4, 6–4 |
| Runner-up | 1977.0 | Australian Open | Grass | Betsy Nagelsen | Helen Gourlay Dianne Fromholtz | 5–7, 6–1, 6–4 |
| Winner | 1977.0 | Australian Open | Grass | Mona Guerrant | Evonne Goolagong Helen Gourlay | title shared, final rained out |
| Winner | 1978.0 | Wimbledon | Grass | Wendy Turnbull | Mima Jaušovec Virginia Ruzici | 4–6, 9–8(10), 6–3 |
Question:
Name the least year for evonne goolagong helen gourlay
Answer:
1977.0