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:
| Year | Championship | Winning score | Margin | Runner(s)-up |
| --- | --- | --- | --- | --- |
| 1965.0 | Titleholders Championship | –1 (71-71-74-71=287) | 10 strokes | Peggy Wilson |
| 1966.0 | Titleholders Championship | +3 (74-70-74-73=291) | 2 strokes | Judy Kimball-Simon , Mary Mills |
| 1967.0 | LPGA Championship | –8 (69-74-72-69=284) | 1 stroke | Shirley Englehorn |
| 1967.0 | Women's Western Open | 11 (71-74-73-71=289) | 3 strokes | Sandra Haynie |
| 1971.0 | Eve-LPGA Championship | –4 (71-73-70-74=288) | 3 strokes | Kathy Ahern |
| 1975.0 | LPGA Championship | –4 (70-70-75-73=288) | 1 stroke | Sandra Haynie |
Question:
What was the most recent year that Kathy Ahern was a runner-up?
Answer:
1971.0